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Click:     A, B, C, etc... for an alphabetical listing of entities
               Periodic Table for chemical entities containing the selected element
               Sorts & Finds for predefined selections

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Entity Names Starting With The Letter A	Structure	Reactions Forming	Reactions Using	Wikipedia	NIST
A (adenine)	Adenine A		1	Wikipedia	NIST
A (alanine)		2	3	Wikipedia	NIST
ABS	ABS	1		Wikipedia	NIST
Absorbing oil	Absorbing Oil	1			NIST
Ac	Ac			Wikipedia	NIST
(Ac)2O	(CH3CO)2CO	4	12	Wikipedia	NIST
acac		2	2	Wikipedia	NIST
acac-			1	Wikipedia	NIST
Acetal (generic)		3	1	Wikipedia
Acetal, cyclic (generic)		1	1	Wikipedia
Acetaldehyde	CH3CHO	13	20	Wikipedia	NIST
Acetaldehyde enolate		1		Wikipedia	NIST
Acetaldehyde, protonated		1			NIST
Acetaldol		1	2		NIST
Acetamide	CH3CONH2	4	1	Wikipedia	NIST
Acetamide/dimethyl ether complex		1			NIST
Acetaminophen				Wikipedia	NIST
Acetanilide		2	1	Wikipedia	NIST
Acetate ester (generic)	CH3COOR	2	3
Acetate ion	[CH3COO]–	6	10	Wikipedia	NIST
Acetic acid	CH3COOH	32	27	Wikipedia	NIST
Acetic acid, aqueous	CH3COOH(aq)	3		Wikipedia	NIST
Acetic acid, dimer		1		Wikipedia	NIST
Acetic acid, protonated		1			NIST
Acetic acid, sodium salt	CH3COONa	4	2	Wikipedia	NIST
Acetic anhydride	(CH3CO)2CO	4	12	Wikipedia	NIST
Acetone		15	19	Wikipedia	NIST
Acetone azine		1	1		NIST
Acetone cyanohydrin		1	1		NIST
Acetone enolate ion			2	Wikipedia	NIST
Acetone peroxide		1	1	Wikipedia	NIST
Acetone, protonated		1			NIST
Acetone/methanol complex		1			NIST
Acetonitrile	CH3CN	6	5	Wikipedia	NIST
Acetonitrile anion	N≡C–CH2–		1	Wikipedia	NIST
Acetonitrile, protonated		1			NIST
Acetophenone		3	2	Wikipedia	NIST
Acetophenone lithium enolate			2		NIST
Acetophenone, 4-nitro			1		NIST
Acetophenone, alpha-amino 4-nitro		1	1		NIST
Acetophenone, alpha-bromo-4-nitro		1	1		NIST
Acetyl cation	[CH3CO]+	1	13		NIST
Acetyl chloride	CH3COCl		11	Wikipedia	NIST
Acetyl coenzyme A			1	Wikipedia	NIST
Acetyl hydroperoxide	CH3COOOH	3	4	Wikipedia	NIST
Acetyl-CoA			1	Wikipedia	NIST
Acetylacetone		2	2	Wikipedia	NIST
Acetylacetone anion			1	Wikipedia	NIST
Acetylene	HC≡CH	9	25	Wikipedia	NIST
Acetylene (generic)	R–C≡C–R	3	10
Acetylene, terminal hydrogen (generic)	R–C≡C–H	1	3
Acetylformic acid		1		Wikipedia	NIST
Acetylide (hydrogen) anion	HC≡C–	1	2	Wikipedia	NIST
Acetylide anion (generic)	R–C≡C–	1	2	Wikipedia
Acetylide dianion	–C≡C–		10		NIST
Acetylsalicylic acid		2		Wikipedia	NIST
Achilleic acid		1	1	Wikipedia	NIST
Acid				Wikipedia	NIST
Acid anhydride (AS/A2 generic)			3	Wikipedia
Acid chloride (AS/A2 generic)			5	Wikipedia
Acid chloride (generic)	RCOCl	6	17
Acid isothiocyanate (generic)		1
Acid, diprotic (AS/A2 generic)
Acid, Lewis (AS/A2 generic)
Acid, monoprotic (AS/A2 generic)
Acid, strong Brønsted (AS/A2 generic)				Wikipedia
Acid, weak Brønsted (AS/A2 generic)				Wikipedia
Acid-base indicator (AS/A2 generic)	Acid-base Indicator			Wikipedia
Acidspar	CaF2	3	5	Wikipedia	NIST
Acidum boricum	H3BO3	10	9	Wikipedia	NIST
AcNH2	CH3CONH2	4	1	Wikipedia	NIST
AcOH	CH3COOH	32	27	Wikipedia	NIST
AcOMe			2	Wikipedia	NIST
Aconitase	Aconitase		2	Wikipedia
Aconitate hydratase	Aconitase		2	Wikipedia
cis-Aconitic acid		1	1	Wikipedia	NIST
AcOOH	CH3COOOH	3	4	Wikipedia	NIST
AcOR	CH3COOR	2	3
Acrolein		3	4	Wikipedia	NIST
Acrylate ion			1	Wikipedia	NIST
Acrylic acid		6		Wikipedia	NIST
Acrylic_glass		1		Wikipedia	NIST
Acrylonitrile		6	10	Wikipedia	NIST
Acrylonitrile-butadiene-styrene copolymer	ABS	1		Wikipedia	NIST
Actinide element (generic)	Actinide Element
Actinium	Ac			Wikipedia	NIST
Actinium 218	218At	1	1	Wikipedia	NIST
Actinium 225	225Ac	1	1	Wikipedia	NIST
Actinium 227	227Ac	1	2	Wikipedia	NIST
Actinium 228	228Ac	1	1	Wikipedia	NIST
Actinolite	Ca2(Mg4.5-2.5Fe2+0.5-2.5) Si8O22(OH)2			Wikipedia
Acyl cation (AS/A2 generic)		2		Wikipedia
Acyl cation (generic)	[RCO]+	1	15
Acyl cation synthon (generic)		1	10
Acyl cation/tetrachloroaluminate complex (generic)		2	1
Acyl chloride (AS/A2 generic)			5	Wikipedia
Acyl chloride (generic)	RCOCl	6	17
Acyl radical		4	2		NIST
Acyl-Nfg complex (generic)		1	10
Acylium ion (AS/A2 generic)		2		Wikipedia
Acyloic (generic)
Adamantane, 1-bromo			1		NIST
Adamantyl function (generic)				Wikipedia
1-Adamantyl phenyl thioether		1			NIST
Adamite	Zn2AsO4(OH)			Wikipedia
Adams' catalyst	PtO2			Wikipedia	NIST
Adenine	Adenine A		1	Wikipedia	NIST
Adenine diphosphate	APD		1	Wikipedia	NIST
Adenine monophosphate	AMP			Wikipedia	NIST
Adenine triphosphate	ATP	1		Wikipedia	NIST
Adenosine 3,5-cyclic phosphate	cAMP			Wikipedia	NIST
Adipic acid		4	3	Wikipedia	NIST
Adiponitrile		3	1	Wikipedia	NIST
ADP	APD		1	Wikipedia	NIST
Adrenaline				Wikipedia	NIST
Adularia	KAlSi3O8			Wikipedia
Aegirine	NaFe3+ [Si2O6]			Wikipedia
Ag	Ag	12	10	Wikipedia	NIST
[Ag(CN)2]-	[Ag(CN)2]–	6	3		NIST
Ag(NH3)2NO3(aq)	Tollens' Reagent	1	4	Wikipedia	NIST
[Ag(NH3)2]+	[Ag(NH3)2]+	3	3		NIST
[Ag(S2O3)2]3-	[Ag(S2O3)2]3–	3			NIST
Ag+	Ag+	3	33		NIST
Ag2CO3	Ag2CO3	3	2	Wikipedia	NIST
Ag2Cr2O4	Ag2CrO4	2		Wikipedia	NIST
Ag2F	Ag2F			Wikipedia	NIST
Ag2O	Ag2O	1	3	Wikipedia	NIST
Ag2O2	Ag2O2			Wikipedia	NIST
Ag2S	Ag2S			Wikipedia
Ag2S	Ag2S	2		Wikipedia	NIST
Ag3PO4	Ag3PO4	1			NIST
Agate	SiO2			Wikipedia
AgBF4	AgBF4	1		Wikipedia	NIST
AgBr	AgBr	6	6	Wikipedia	NIST
AgBrO3	AgBrO3	1			NIST
AgC2O4	AgC2O4	1		Wikipedia	NIST
AgCl	AgCl	9	6	Wikipedia	NIST
[AgCl2]-	[AgCl2]–	2			NIST
AgCN	AgCN		1	Wikipedia	NIST
AgF	AgF	3	3	Wikipedia	NIST
AgF2	AgF2	3	2	Wikipedia	NIST
AgI	AgI	3	1	Wikipedia	NIST
AgIO3	AgIO3	1		Wikipedia	NIST
AgNO3	AgNO3	1	11	Wikipedia	NIST
AgSCN	AgSCN	1			NIST
AgsSO4	Ag2SO4	1	1	Wikipedia	NIST
Air	Air		8	Wikipedia	NIST
Al	Al	3	21	Wikipedia	NIST
Al(CH2CH3)3	Al(CH2CH3)3	2	3	Wikipedia	NIST
Al(CH3)3	Al(CH3)3			Wikipedia	NIST
Al(H2O)3(OH)3	Al(H2O)3(OH)3 Al(OH)3	4	3		NIST
[Al(H2O)6]3+	[Al(H2O)6]3+	2	6		NIST
Al(O(CH3)2CH)3	Al(OiPr)3		1	Wikipedia	NIST
Al(OH)3	Al(OH)3	2	11	Wikipedia	NIST
[Al(OH)4]-	[Al(OH)4]–	8		Wikipedia	NIST
Al(OiPr)3	Al(OiPr)3		1	Wikipedia	NIST
Al2(SO4)3	Al2(SO4)3	2	2	Wikipedia	NIST
Al2O3	Al2O3	15	12	Wikipedia	NIST
Al3+	Al3+	3	6		NIST
Al3Cl6	Al2Cl6	1		Wikipedia	NIST
Ala		2	3	Wikipedia	NIST
Ala-ala	Ala-Ala	1			NIST
Ala-gly	Ala-Gly	1			NIST
Alanine		2	3	Wikipedia	NIST
Alanine, deprotonated			1	Wikipedia	NIST
Alanine, protonated		1		Wikipedia	NIST
L-Alanyl-L-alanine	Ala-Ala	1			NIST
L-Alanylglycine	Ala-Gly	1			NIST
AlBr3	AlBr3	1	1	Wikipedia	NIST
[AlBr4]-	[AlBr4]–				NIST
AlCl3	AlCl3	5	34	Wikipedia	NIST
AlCl3.6H2O	AlCl3.6H2O	3			NIST
[AlCl4]-	[AlCl4]–	16	4		NIST
Alcohol (AS/A2 generic)		1	3	Wikipedia
Alcohol (generic)	R–OH	18	13	Wikipedia
1° Alcohol (generic)	RCH2OH	15	3
1° Alcohol, R-CH2CH2OH (generic)	R–CH2CH2OH	5
2° Alcohol (generic)	R2CHOH	6
2° Alcohol, cyclohexyl (generic)		1		Wikipedia
3° Alcohol (generic)	R3COH	5	1	Wikipedia
1° Alcohol (AS/A2 generic)		4	1	Wikipedia
2° Alcohol (AS/A2 generic)		4	1	Wikipedia
3° Alcohol (AS/A2 generic)			1	Wikipedia
Alcohol, benzylic (generic)		1		Wikipedia
Alcohol, primary (AS/A2 generic)		4	1	Wikipedia
Alcohol, secondary (AS/A2 generic)		4	1	Wikipedia
Alcohol, tertiary (AS/A2 generic)			1	Wikipedia
Aldehyde (AS/A2 generic)		1	10	Wikipedia
Aldehyde (generic)	RCHO	11	21	Wikipedia
Aldehyde stabilised carbanion (generic)			2
Aldehyde, a,b-unsaturated (generic)			1	Wikipedia
Aldehyde, alpha-bromo (generic)		2
Aldehyde, alpha-halogen (generic)
Aldehyde, alpha-hydrogen (generic)	RCH2CHO	2	2
Aldehyde, beta-hydroxy (generic)		2
Aldehyde, protonated (generic)		1
Aldimine (generic)				Wikipedia
Aldimine, N-alkyl (generic)				Wikipedia
Aldose (generic)	Aldose			Wikipedia
AlEt3	Al(CH2CH3)3	2	3	Wikipedia	NIST
AlF3	AlF3	4	1	Wikipedia	NIST
[AlF4]-	[AlF4]–				NIST
[AlF6]3-	[AlF6]3–		1		NIST
AlH3	AlH3		2	Wikipedia	NIST
[AlH4]-	[AlH4]–	1	2		NIST
AlI3	AlI3	1		Wikipedia	NIST
[AlI4]-	[AlI4]–				NIST
Alicyclic (generic)		1	1	Wikipedia
Alizarin yellow GG	Alizarin Yellow				NIST
Alkali (generic)	Alkali			Wikipedia
Alkali metals (generic)	Group Ia/1 Alkali Metals			Wikipedia
Alkaline earth metals (generic)	Group IIa/2 Alkaline Earth Metals			Wikipedia
Alkane (AS/A2 generic)				Wikipedia
Alkane (generic)	R–H	8	1	Wikipedia
Alkanol (generic)	R–OH	18	13	Wikipedia
Alkene (AS/A2 generic)				Wikipedia
alpha-Alkene (long chain)		2		Wikipedia	NIST
Alkene HOMO (generic)
Alkene LUMO (generic)
Alkene synthon (generic)			1
Alkene, 1,1-disubstituted (generic)				Wikipedia
cis Alkene (generic)		2	2
Alkene, monosubstituted (generic)		5	9
Alkene, tetrasubstituted (generic)		2	6
trans Alkene (generic)		4	3	Wikipedia
Alkene, trisubstituted (generic)		1	1
Alkenyl lithium (generic)		1	1
Alkoxide (generic)	RO–	1	8	Wikipedia
Alkoxide ion (AS/A2 generic)				Wikipedia
1° Alkoxide ion (generic)	R–CH2O–	1	2
2° Alkoxide ion (generic)
3° Alkoxide ion (generic)		2	1
Alkoxy aluminium hydride ion (generic)	[ROAlH3]–
Alkoxy borohydride ion (generic)	[ROBH3]–
Alkoxy carbenium ion (generic)			2
Alkoxy cation (generic)	[R–O]+
3-Alkoxy propanoate, alkyl (generic)		1
1° Alkyl benzene (generic)		1	1
Alkyl alkoxy hydroxy carbenium ion (generic)		1
Alkyl aluminium hydride ion (generic)	[RAlH3]–
Alkyl ammonium tetrafluoroborate (generic)	[R4N]+ [BF4]–	1
Alkyl borohydride ion (generic)	[RBH3]–
Alkyl bromide (generic)	RBr	5	8	Wikipedia
1° Alkyl bromide (generic)	R–CH2–Br	1	2
2° Alkyl bromide (generic)		2	1
Alkyl carbene (generic)	R–C–H		1	Wikipedia
Alkyl carbenium ion (generic)	R+	2	32	Wikipedia
1° Alkyl carbenium ion (generic)	[RCH2CH2]+		6
2° Alkyl carbenium ion (generic)	[R2CH]+		3
3° Alkyl carbenium ion (generic)	[R3C]+		3
Alkyl carbenium ion synthon (generic)	R–Nfg	1	7
1° Alkyl carbenium ion synthon (generic)	RCH2–Nfg	1
2° Alkyl carbenium ion synthon (generic)	(R)2CH–Nfg	1
3° Alkyl carbenium ion synthon (generic)	(R)3C–Nfg	1
Alkyl chloride (generic)	RCl	4	7	Wikipedia
2° Alkyl chloride (generic)		2	1
Alkyl cyanide (generic)	R–CN	5	11
Alkyl fluoride (generic)	R–F	2	1	Wikipedia
2-Alkyl indole (generic)		1
Alkyl iodide (generic)	R–I	3	7	Wikipedia
2° Alkyl iodide (generic)		2	1
Alkyl lithium (generic)	RLi	2	4
Alkyl magnesium bromide (generic)	RMgBr	2	1	Wikipedia
Alkyl magnesium chloride (generic)	RMgCl	2	1	Wikipedia
Alkyl magnesium halide (generic)	RMgX	1	12	Wikipedia
Alkyl methyl carbenium ion (generic)		1	4
Alkyl nitrile (generic)	R–CN	5	11
Alkyl nitrile alpha-carbanion (generic)			1
Alkyl oxonium ion (generic)
1° Alkyl oxonium ion (generic)	[RCH2OH2]+	1
sec Alkyl sulfonate		2		Wikipedia	NIST
Alkyl telluronium ion (generic)	[R–TeH2]+	2
Alkyl thiocyanate (generic)	R–S–C≡N	2		Wikipedia
Alkyl, -R (generic)	–R			Wikipedia
Alkyl, R-R (generic)	R–R	3
Alkyl, -CH2- (generic)		5	2
Alkyl, -CH2CH2- (generic)		6
Alkyl, adamantyl (generic)				Wikipedia
Alkyl, butyl (generic)				Wikipedia
Alkyl, C-H (generic)		1	1
Alkyl, ethyl (generic)	CH3CH2–R			Wikipedia
Alkyl, isopropyl (generic)
Alkyl, neopentyl (generic)
Alkyl, propyl (generic)				Wikipedia
Alkyl, tertiary butyl (generic)
2-Alkyl-1,3-dithiane (generic)		1	1
Alkyl-Nfg complex (generic)	R–Nfg	1	7
1° Alkyl-Nfg complex (generic)	RCH2–Nfg	1
3° Alkyl-Nfg complex (generic)	(R)3C–Nfg	1
2° Alkyl-Nfg complex (generic)	(R)2CH–Nfg	1
Alkylated nucleophile (generic)	R–Nu	3
Alkylnitrile (AS/A2 generic)		1	3	Wikipedia
Alkyne (AS/A2 generic)				Wikipedia
Alkyne anion (generic)	R–C≡C–	1	2	Wikipedia
Alkyne, disubstituted (generic)	R–C≡C–R	3	10
Alkyne, terminal hydrogen (generic)	R–C≡C–H	1	3
Allanite	(Ca,Ce,Y,La,Th)2 (Al,Fe)3Si3O12(OH)			Wikipedia
Allene (generic)				Wikipedia
Allene	H2C=C=CH2			Wikipedia	NIST
D-Allose		1		Wikipedia	NIST
Alloy (generic)	Alloy			Wikipedia
Allyl alcohol		8	2	Wikipedia	NIST
Allyl alkoxide ion			1		NIST
Allyl anion			2	Wikipedia	NIST
Allyl anion (generic)
Allyl cation			2		NIST
Allyl cation (generic)		1	1
Allyl chloride		1	3	Wikipedia	NIST
Allyl FMO (generic)
Allyl phenyl ether			1		NIST
Allyl radical					NIST
4-Allyl-1,2-methylenedioxybenzene				Wikipedia	NIST
4-Allyl-2-methoxyphenol		1			NIST
1° Allylic alcohol (generic)		1		Wikipedia
2° Allylic alcohol (generic)		2		Wikipedia
Allylic cation synthon (generic)		1
Allylic-Nfg complex (generic)		1
2-Allylphenol		1			NIST
AlN	AlN	1		Wikipedia	NIST
Alpha effect Lewis base (generic)				Wikipedia
Alpha particle	α	44	6	Wikipedia	NIST
α-ketoglutarate dehydrogenase	α-ketoglutarate dehydrogenase		1	Wikipedia
D-Altrose		1		Wikipedia	NIST
Alum	KAl(SO4)2 .12H2O	1		Wikipedia	NIST
Alumina	Al2O3	15	12	Wikipedia	NIST
Alumina trihydrate	Al(OH)3	2	11	Wikipedia	NIST
Aluminium	Al	3	21	Wikipedia	NIST
Aluminium bromide	AlBr3	1	1	Wikipedia	NIST
Aluminium chloride	AlCl3	5	34	Wikipedia	NIST
Aluminium chloride dimer	Al2Cl6	1		Wikipedia	NIST
Aluminium chloride hexahydrate	AlCl3.6H2O	3			NIST
Aluminium fluoride	AlF3	4	1	Wikipedia	NIST
Aluminium hexaaqua complex ion	[Al(H2O)6]3+	2	6		NIST
Aluminium hexafluoride ion	[AlF6]3–		1		NIST
Aluminium hydride	AlH3		2	Wikipedia	NIST
Aluminium hydride, alkoxy ion (generic)	[ROAlH3]–
Aluminium hydride, alkyl ion (generic)	[RAlH3]–
Aluminium hydride, dialkoxy ion (generic)	[(RO)2AlH2]–
Aluminium hydride, dialkyl ion (generic)	[R2AlH2]–
Aluminium hydride, trialkoxy ion (generic)	[(RO)3AlH]–
Aluminium hydride, trialkyl ion (generic)	[R3AlH]–
Aluminium hydroxide	Al(OH)3	2	11	Wikipedia	NIST
Aluminium hydroxide, hydrated	Al(H2O)3(OH)3 Al(OH)3	4	3		NIST
Aluminium iodide	AlI3	1		Wikipedia	NIST
Aluminium ion	Al3+	3	6		NIST
Aluminium isopropoxide	Al(OiPr)3		1	Wikipedia	NIST
Aluminium nitride	AlN	1		Wikipedia	NIST
Aluminium oxide	Al2O3	15	12	Wikipedia	NIST
Aluminium potassium sulfate dodecahydrate	KAl(SO4)2 .12H2O	1		Wikipedia	NIST
Aluminium sulfate	Al2(SO4)3	2	2	Wikipedia	NIST
Aluminium tetrachloride anion	[AlCl4]–	16	4		NIST
Aluminium tetrahydroxy ion	[Al(OH)4]–	8		Wikipedia	NIST
Aluminium triaquatrihydroxy complex	Al(H2O)3(OH)3 Al(OH)3	4	3		NIST
Aluminium, diethyl cyanide		1			NIST
Aluminium, diisobutyl hydride		1	2	Wikipedia	NIST
Aluminium, trimethyl	Al(CH3)3			Wikipedia	NIST
Aluminum	Al	3	21	Wikipedia	NIST
Aluminum alloy 3S	Aluminium Alloy S3			Wikipedia	NIST
Aluminum bronze	Aluminum Bronze			Wikipedia	NIST
Aluminum-silicon 43	Al-Si				NIST
Alumstone	KAl3(SO4)2(OH)6			Wikipedia
Alunite	KAl3(SO4)2(OH)6			Wikipedia
Am	Am			Wikipedia	NIST
Amalgam, bismuth	Bismuth Amalgam			Wikipedia	NIST
Amalgam, dentist's	Dentist's Amalgam			Wikipedia	NIST
Amalgam, zinc	Zn(Hg)		2	Wikipedia	NIST
Ambidentate base
Amblygonite	(Li,Na)Al(PO4) (F,OH)		1	Wikipedia
Americium	Am			Wikipedia	NIST
Americium 241	241Am	1	1	Wikipedia	NIST
Amide (AS/A2 generic)		2		Wikipedia
Amide (generic)/water complex		1
1° Amide (generic)		5	5
1° Amide, anion (generic)			1	Wikipedia
2° Amide (generic)		1	5
3° Amide (generic)		2
Amide dimer, hydrogen bonded		1
Amide ion	[H2N]–	2	18		NIST
Amide, cyclic (generic)				Wikipedia
Amide, cyclic - 4 membered ring (generic)				Wikipedia
Amide, protonated (generic)		1
Amidocyanogen	HN=C=NH	2	3	Wikipedia	NIST
Amidosulfate anion	[NH2SO3]–		1		NIST
1° Amine (generic)	R–NH2	4	9
1° Amine, 1° alkyl (generic)	RCH2NH2	6
2° Amine (generic)	R2NH	1	3
2 Amine, (RCH2)2NH (generic)	(RCH2)2NH	1		Wikipedia
2° Amine, R, R- (generic)		5		Wikipedia
3° Amine (generic)	R3N	1	3
3° Amine, (RCH2)3N (generic)	(RCH2)3N	1		Wikipedia
3° Amine, beta-chloro (generic)	R2N–CH2CH2Cl	1
3° Amine, beta-hydroxy (generic)		1
Amine N-oxide (generic)	R3N=O	1
1° Amine (AS/A2 generic)		2		Wikipedia
2° Amine (AS/A2 generic)				Wikipedia
3° Amine (AS/A2 generic)				Wikipedia
Amine, bis(trimethyl)silyl		1			NIST
Amine, n-butyl		1	1	Wikipedia	NIST
Amine, diisopropyl		2		Wikipedia	NIST
Amine, diisopropyl ethyl					NIST
Amine, dimethyl	(CH3)2NH	4	3	Wikipedia	NIST
Amine, ethyl	CH3CH2NH2	5	7	Wikipedia	NIST
Amine, methyl	CH3NH2	2	9	Wikipedia	NIST
Amine, primary (AS/A2 generic)		2		Wikipedia
Amine, propyl			1	Wikipedia	NIST
Amine, secondary (AS/A2 generic)				Wikipedia
Amine, tertiary (AS/A2 generic)				Wikipedia
Amine, triethyl	(CH3CH2)3N		1	Wikipedia	NIST
Amine, trimethyl	(CH3)3N	7	3	Wikipedia	NIST
2-Aminihypoxthanthine	Guanine G		1	Wikipedia	NIST
Amino acid (AS/A2 generic)		1	2	Wikipedia
alpha-Amino acid, deprotonated (generic)			1	Wikipedia
alpha-Amino acid, protonated (generic)		1		Wikipedia
alpha-Amino acid (generic)		1	1	Wikipedia
(-)-2-Amino-1-(3,4-dihydroxyphenyl)ethanol				Wikipedia	NIST
(D)-threo-2-Amino-1-(4-nitrophenyl)-1,3-propanediol		1	1	Wikipedia	NIST
threo-2-Amino-1-(4-nitrophenyl)-1,3-propanediol		1	1	Wikipedia	NIST
2-Amino-1-(4-nitrophenyl)ethanone		1	1		NIST
2-Amino-1-(4-nitrophenyl)ethanone, N-acyl		1	1		NIST
4-Amino-2(1H)-pyrimidinone	Cytosine C		1	Wikipedia	NIST
2-Amino-2-methyl propane	(CH3)3C–NH2		1		NIST
Aminobenzene		8	8	Wikipedia	NIST
2-Aminobenzoic acid			1	Wikipedia	NIST
2-Aminoethanol		1	3	Wikipedia	NIST
Aminoform		1	2	Wikipedia	NIST
Aminomethanamidine			2	Wikipedia	NIST
4-Aminonitrobenzene		1	3	Wikipedia	NIST
4-Aminophenol		1		Wikipedia	NIST
[D(-)-a-Aminophenylacetamido]penicillanic acid				Wikipedia	NIST
2-Aminopropane	(CH3)2CHNH2	1		Wikipedia	NIST
(2S)-2-Aminopropanoic acid		2	3	Wikipedia	NIST
6-Aminopurine	Adenine A		1	Wikipedia	NIST
Aminyl radical	H2N•				NIST
Aminylium ion	[NH2]+			Wikipedia	NIST
Ammonia	NH3	48	115	Wikipedia	NIST
Ammonia 0.880	.880 NH3		6	Wikipedia	NIST
Ammonia, aqueous	NH3(aq)	2	18	Wikipedia	NIST
Ammonia-Hydrogen chloride complex		1			NIST
Ammonia/borane complex	[H3N–BH2–NH3]+ [BH4]–	1	1		NIST
Ammonia/water complex		1			NIST
Ammoniated electron	e–(am)	5	2		NIST
Ammonical silver nitrate solution	Tollens' Reagent	1	4	Wikipedia	NIST
Ammonium metavandate	NH4VO3	1	1		NIST
Ammonium vandate(V)	NH4VO3	1	1		NIST
Ammonium acetate	[NH4]+[CH3CO2]–	1	1	Wikipedia	NIST
Ammonium aminoformate		1	1		NIST
Ammonium bifluoride	[NH4]+ [FHF]–	1	1		NIST
Ammonium bromide	NH4Br	5		Wikipedia	NIST
Ammonium carbamate		1	1		NIST
Ammonium carbonate	(NH4)2CO3		1	Wikipedia	NIST
Ammonium chloride	NH4Cl	15	6	Wikipedia	NIST
Ammonium ethanoate	[NH4]+[CH3CO2]–	1	1	Wikipedia	NIST
Ammonium fluoride	NH4F	1	1	Wikipedia	NIST
Ammonium hydrogen difluoride	[NH4]+ [FHF]–	1	1		NIST
Ammonium hydrogen sulfide	NH4HS	1			NIST
Ammonium hydrosulfide	(NH4)2S	1		Wikipedia	NIST
Ammonium ion	[NH4]+	27	15	Wikipedia	NIST
Ammonium ion (AS/A2 generic)				Wikipedia
1° Ammonium ion (generic)	[R–NH3]+	2
2° Ammonium ion (generic)	[R2NH2]+	1
3° Ammonium ion (generic)	[R3NH]+	1
4° Ammonium ion (generic)	[R4N]+		1
Ammonium ion, n-butyl		2			NIST
Ammonium ion, cis-(4-tertiary butylcyclohexyl) trimethyl			1		NIST
Ammonium ion, cyclohexyl trimethyl			1		NIST
Ammonium ion, dimethyl	[(CH3)2NH2]+	1			NIST
Ammonium ion, diphenyl		1			NIST
Ammonium ion, ethyl	[CH3CH2NH3]+	2			NIST
Ammonium ion, methyl	[CH3NH3]+	4			NIST
Ammonium ion, phenyl		2			NIST
Ammonium ion, n-propyl		1			NIST
Ammonium ion, tetramethyl	[(CH3)4N]+	2	3		NIST
Ammonium ion, trans-(4-tertiary butylcyclohexyl) trimethyl			1		NIST
Ammonium ion, triethyl	[(CH3CH2)3NH]+	1			NIST
Ammonium ion, trimethyl	[(CH3)3NH]+	2			NIST
Ammonium nitrate	NH4NO3	3	5	Wikipedia	NIST
Ammonium nitrate fuel oil	NH4NO3 + Fuel Oil	1		Wikipedia
Ammonium nitrite	NH4NO3		2	Wikipedia	NIST
Ammonium perchlorate	NH4ClO4	2	2	Wikipedia	NIST
Ammonium sulfate	(NH4)2SO4	3	1	Wikipedia	NIST
Ammonium sulfide, aqueous solution	(NH4)2S	1		Wikipedia	NIST
Ammonium sulfite	(NH4)2SO3 .H2O	2	1		NIST
Ammonium tetrafluoroborate	NH4BF4	1	1		NIST
Ammonium thiosulfate	(NH4)2S2O3	3			NIST
AMP	AMP			Wikipedia	NIST
cAMP	cAMP			Wikipedia	NIST
Amphetamine				Wikipedia	NIST
Ampicillin				Wikipedia	NIST
tert-Amyl alcohol		1			NIST
tert-Amyl bromide		2	1		NIST
Amylopectin	Starch		3	Wikipedia
Amylose	Starch		3	Wikipedia
AN		6	10	Wikipedia	NIST
Anadonis green	Cr2O3	3	2	Wikipedia	NIST
Analcime	NaAlSi2O2 .2H2O			Wikipedia
Analcite	NaAlSi2O2 .2H2O			Wikipedia
Analgesic (generic)	Analgesic			Wikipedia
Analgesic, narcotic (generic)	Narcotic Analgesic			Wikipedia
Anatase	TiO2		1	Wikipedia
Andalucite	Al2SiO5
Anethole				Wikipedia	NIST
ANFO	NH4NO3 + Fuel Oil	1		Wikipedia
Anglesite	PbSO4			Wikipedia
Angular molecular shape, AX2E1 (generic)				Wikipedia
Angular molecular shape, AX2E2 (generic)				Wikipedia
Anhydride (AS/A2 generic)			3	Wikipedia
Anhydride (generic)	(RCOO)2O	3		Wikipedia
Anhydrite	CaSO4			Wikipedia
Aniline		8	8	Wikipedia	NIST
Aniline anion			1	Wikipedia	NIST
Aniline, N-2° alkyl (generic)		1		Wikipedia
Aniline, N-alkyl (generic)			1	Wikipedia
Aniline, protonated		2			NIST
Anion bridging bond (generic)				Wikipedia
Anion, non-metal (AS/A2 generic)
Anionic Lobe-HOMO Lewis base congeneric planar					NIST
Anisole			2	Wikipedia	NIST
Ankerite	Ca(Mg,Fe) (CO3)2			Wikipedia
Annabergite	Ni3(AsO4)2 .8H2O			Wikipedia
Anthophyllite asbestos	(Mg,Fe)7Si8 O22(OH)2			Wikipedia
Anthquinol		1	1		NIST
Anthracene		1	1	Wikipedia	NIST
Anthracene oil	Anthracene Oil	1			NIST
9,10-Anthradiol		1	1		NIST
Anthrahydroquinone		1	1		NIST
Anthranilic acid			1	Wikipedia	NIST
9,10-Anthraquinone		5	1	Wikipedia	NIST
Antibiotic (generic)	Antibiotic			Wikipedia
Antibotton quark	— b			Wikipedia
Anticharm quark	— c		1	Wikipedia
Antichlor	Na2S2O3	5	4	Wikipedia	NIST
Antidown quark	— d		3	Wikipedia
Antielectron	β+	6	1	Wikipedia	NIST
Antifreeze		6	9	Wikipedia	NIST
Antimonic oxide	Sb2O5		1	Wikipedia	NIST
Antimonide ion	Sb3–		5		NIST
Antimonite	Sb2S3			Wikipedia
Antimonous fluoride	SbF3	1	2		NIST
Antimony	Sb	1	8	Wikipedia	NIST
Antimony glance	Sb2S3			Wikipedia
Antimony hydride	H3Sb	7	1	Wikipedia	NIST
Antimony pentafluoride	SbF5	2	6	Wikipedia	NIST
Antimony pentoxide	Sb2O5		1	Wikipedia	NIST
Antimony sulfide	Sb2S3	1	1	Wikipedia	NIST
Antimony trioxide	Sb2O3	2	2	Wikipedia	NIST
Antimony, native	Sb native			Wikipedia
Antimony(III) chloride	SbCl3	3	1		NIST
Antimony(III) fluoride	SbF3	1	2		NIST
Antimony(III) ion	Sb3+		2		NIST
Antimony(v) chloride	SbCl5	2	2		NIST
Antimony(V) fluoride	SbF5	2	6	Wikipedia	NIST
Antimony(V) hexafluoride ion	[SbF6]–	2	1		NIST
Antimony(V) ion	Sb5+		1		NIST
Antimony(V) pentafluoride. fluorosulfonic acid	H+[SbF6]– .SO3			Wikipedia	NIST
Antimony(V) pentafluoride. hydrogen fluoride	ROH	2		Wikipedia	NIST
Antimuon	— μ		1	Wikipedia
Antiproton	— p	1		Wikipedia
Antipsychotic (generic)	Major Tranquilliser
Antistrange quark	— s			Wikipedia
Antitau	— τ			Wikipedia
Antitop quark	— t			Wikipedia
Antiup quark	— u		2	Wikipedia
AP		1	1	Wikipedia	NIST
Apatite	Ca5(PO4)3 (F,Cl,OH)			Wikipedia
Apophyllite	(K,Na)Ca4Si8O20 (F,OH).8H2O			Wikipedia
Aqua	H2O	529	531	Wikipedia	NIST
Aqua regia	Aqua Regia	1	2	Wikipedia	NIST
Aqueous alkali, 0.05 to 1.0 molar (generic)	OH–(aq)		8
Aqueous ammonia	NH3(aq)	2	18	Wikipedia	NIST
Aqueous hydrochloric acid	HCl(aq)	2	13	Wikipedia	NIST
Aqueous M(II) ion (AS/A2 generic)		1	1
Aqueous M(III) ion (AS/A2 generic)		1	1
Aqueous mineral acid, 0.05 to 1.0 molar (generic)	H+(aq)		15
Aqueous nitric acid	HNO3(aq)	3	3	Wikipedia	NIST
Aqueous sodium hydroxide	NaOH(aq)	5	37	Wikipedia	NIST
Aqueous sulfuric acid	H2SO4(aq)	3	11	Wikipedia	NIST
Ar	Ar	1	6	Wikipedia	NIST
Ar(l)	Ar(l)	1		Wikipedia	NIST
D-Arabinose		1	1	Wikipedia	NIST
Arachidic acid	CH3(CH2)18COOH			Wikipedia	NIST
Arachidonic acid	Arachidonic Acid			Wikipedia	NIST
Aragonite	CaCO3			Wikipedia
Arcanum duplicatum	K2SO4	2	1	Wikipedia	NIST
Arcton 6	CCl2F2	4	1	Wikipedia	NIST
Arene (AS/A2 generic)				Wikipedia
Arenium ion (generic)
Arg		1	1	Wikipedia	NIST
Argentic fluoride	AgF2	3	2	Wikipedia	NIST
Argentic oxide	Ag2O2			Wikipedia	NIST
Argentite	Ag2S			Wikipedia
Argentocyanide ion	[Ag(CN)2]–	6	3		NIST
Argentous fluoride	AgF	3	3	Wikipedia	NIST
Argentum	Ag	12	10	Wikipedia	NIST
Arginine		1	1	Wikipedia	NIST
Arginine, deprotonated			1	Wikipedia	NIST
Arginine, doubly-protonated		1		Wikipedia	NIST
Arginine, protonated		1	1	Wikipedia	NIST
Argon	Ar	1	6	Wikipedia	NIST
Argon 36	36Ar	1		Wikipedia	NIST
Argon fluorohydride	H–Ar–F	1		Wikipedia	NIST
Argon, liquid	Ar(l)	1		Wikipedia	NIST
Argonium ion	[ArH]+	1			NIST
Argyrodite	Ag8GeS6		1	Wikipedia
[ArH]+	[ArH]+	1			NIST
Aromatic compound (AS/A2 generic)				Wikipedia
Aronium ion (generic)
Arsane	H3As	7	1	Wikipedia	NIST
Arsenate (dihydrogen) ion	[H2AsO4]–	1	1		NIST
Arsenate (hydrogen) ion	[HAsO4]2–	1	1		NIST
Arsenic	As	2	8	Wikipedia	NIST
ortho Arsenic acid	H3AsO4	1			NIST
Arsenic hexafluoride ion	[AsF6]–	3	1		NIST
Arsenic pentachloride	AsCl5			Wikipedia	NIST
Arsenic pentoxide	As2O5		1	Wikipedia	NIST
Arsenic trichloride	AsCl3	2	1	Wikipedia	NIST
Arsenic trioxide	As2O3	2	1	Wikipedia	NIST
Arsenic trisulfide	As2S3	1	1	Wikipedia	NIST
Arsenic, native	As native			Wikipedia
Arsenic, yellow	As4	1		Wikipedia	NIST
Arsenic(III) fluoride	AsF3	1	2		NIST
Arsenic(III) ion	As3+		2		NIST
Arsenic(III) sulfide	As2S3	1	1	Wikipedia	NIST
Arsenic(V) fluoride	AsF5	3	3		NIST
Arsenic(V) ion	As5+		1		NIST
Arsenide ion	As3–		5	Wikipedia	NIST
Arsenite ion	[AsO2]–			Wikipedia	NIST
Arsenopyrite	FeAsS		1	Wikipedia
Arsenopyrites	FeS2.FeAs2		1		NIST
Arsenous oxide	As2O3	2	1	Wikipedia	NIST
Arsinate ion	[AsO4]3–		1		NIST
Arsine	H3As	7	1	Wikipedia	NIST
Arsine anion	[H2As]–		1		NIST
Arsine anion (generic)	[R2As]–		1
Arsine, dialkyl (generic)	R2AsH	1
Arsine, phenyl		1			NIST
Arsine, phenyl anion			1		NIST
Arsine, trialkyl (generic)	R3As		1
Arsine, triethyl	(CH3H2)3As		1		NIST
Arsnic hydride	H3As	7	1	Wikipedia	NIST
Arsole				Wikipedia	NIST
Arsonium ion	[AsH4]+	1			NIST
Arsonium ion (generic)	[R3AsH]+	1
Arsonium ion, triethyl	[(CH3CH2)3AsH]+	1			NIST
Arylam		2		Wikipedia	NIST
As	As4	1		Wikipedia	NIST
As	As	2	8	Wikipedia	NIST
As(CH3CH2)2	(CH3H2)3As		1		NIST
As2O3	As2O3	2	1	Wikipedia	NIST
As2O5	As2O5		1	Wikipedia	NIST
As2S3	As2S3	1	1	Wikipedia	NIST
As3+	As3+		2		NIST
As3-	As3–		5	Wikipedia	NIST
As4O10	As2O5		1	Wikipedia	NIST
As5+	As5+		1		NIST
ASA		2		Wikipedia	NIST
Asbestos, anthophyllite	(Mg,Fe)7Si8 O22(OH)2			Wikipedia
Asbestos, tremolite	Ca2(Mg,Fe)5 Si8O22			Wikipedia
(+/-)-Ascaridole		1		Wikipedia	NIST
AsCl3	AsCl3	2	1	Wikipedia	NIST
AsCl5	AsCl5			Wikipedia	NIST
xuy	YbF2				NIST
AsF3	AsF3	1	2		NIST
AsF5	AsF5	3	3		NIST
[AsF6]-	[AsF6]–	3	1		NIST
AsH3	H3As	7	1	Wikipedia	NIST
Asn		1	1	Wikipedia	NIST
[AsO2]-	[AsO2]–			Wikipedia	NIST
[AsO4]3-	[AsO4]3–		1		NIST
Asp		1	1	Wikipedia	NIST
Asparagine		1	1	Wikipedia	NIST
Asparagine, deprotonated			1	Wikipedia	NIST
Asparagine, protonated		1		Wikipedia	NIST
Aspartic acid		1	1	Wikipedia	NIST
Aspartic acid, deprotonated		1	1	Wikipedia	NIST
Aspartic acid, doubly-deprotonated			1	Wikipedia	NIST
Aspartic acid, protonated		1		Wikipedia	NIST
Asphalt	Bitumen	1		Wikipedia	NIST
Aspirin		2		Wikipedia	NIST
Associated gas	Natural Gas	1	5	Wikipedia	NIST
Astatine	At			Wikipedia	NIST
Astatine 216	216At	1	1	Wikipedia	NIST
Astatine 217	217At	1	1	Wikipedia	NIST
At	At			Wikipedia	NIST
Atacamite	Cu2Cl(OH)3			Wikipedia
Atomic ion (generic)	Atomic Ion
ATP	ATP	1		Wikipedia	NIST
Au	Au	1	2	Wikipedia	NIST
[Au(CN)2]-	[Au(CN)2]–	1	1		NIST
Au+	Au+	1	2		NIST
Au2O	Au2O				NIST
Au2O3	Au2O3			Wikipedia	NIST
Au3+	Au3+		1		NIST
AuBr	AuBr				NIST
AuBr3	AuBr3			Wikipedia	NIST
AuCl	AuCl			Wikipedia	NIST
AuCl3	AuCl3			Wikipedia	NIST
[AuCl4]-	[AuCl4]–	1			NIST
AuF3	AuF3			Wikipedia	NIST
Augite	(Ca,Na)(Mg,Fe,Al,Ti) (Si,Al)2O6			Wikipedia
AuI	AuI				NIST
AuI3	AuI3				NIST
Auric bromide	AuBr3			Wikipedia	NIST
Auric chloride	AuCl3			Wikipedia	NIST
Auric fluoride	AuF3			Wikipedia	NIST
Auric iodide	AuI3				NIST
Auric oxide	Au2O3			Wikipedia	NIST
Aurocyanide ion	[Au(CN)2]–	1	1		NIST
Aurous bromide	AuBr				NIST
Aurous chloride	AuCl			Wikipedia	NIST
Aurous iodide	AuI				NIST
Aurous oxide	Au2O				NIST
Aurum	Au	1	2	Wikipedia	NIST
Autunite	Cu(UO2)2(PO4)2 .8-12H2O			Wikipedia
Axinite	Ca2(Fe,Mn)Al2 BSi4O15(OH)			Wikipedia
1-Azacyclopentane			1	Wikipedia	NIST
Azane	NH3	48	115	Wikipedia	NIST
Azide (generic)	R–N3	1		Wikipedia
Azide ion	[N3]–		5	Wikipedia	NIST
((1R)-1-Azidoethyl) benzene		1			NIST
Azine		2	4	Wikipedia	NIST
Azine (generic)
Azinic acid (generic)
Azinoyl (generic)
Aziridine		2		Wikipedia	NIST
Aziridine, N,N-dialkyl (generic)			2
Azo compound (generic)	R–N=N–R'			Wikipedia
Azo, phenyl (generic)		1
Azobenzene					NIST
Azole				Wikipedia	NIST
Azomethylene	CH2N2	1	4	Wikipedia	NIST
Azoniaanthracene ion			2		NIST
Azonic acid (generic)
Azono (generic)
Azonoyl (generic)
Azoxy compound (generic)				Wikipedia
Azulene				Wikipedia	NIST

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© Mark R. Leach 1999 –

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