Searching for Information on Chemical Warfare (CW) Agents 

In searching for data on these compounds in online databases, it is often useful to have the molecular formula, the Chemical Abstracts Service (CAS) name, or the CAS registry number.

Chemical Structure	Common Name(s)	Chemical Abstracts Service (CAS) Name	Molecular Formula	CAS Registry Number
	AC, hydrogen cyanide, prussic acid	Hydrocyanic acid	CHN	74-90-8
	BA, bromoacetone	Bromo-2-propanone	C 3H 5BrO	598-31-2
	BZ, 3-quinuclidinyl benzilate	a-Hydroxy-a-phenylbenzeneacetic acid, 1-azabicyclo[2.2.2]octan-3-yl ester	C 21H 23NO 3	6581-06-2
	CA, a-bromophenylacetonitrile, bromobenzylcyanide	a-Bromobenzeneacetonitrile	C 8H 6BrN	5798-79-8
	CG, phosgene	Carbonic dichloride	CCl 2O	75-44-5
	CK	Cyanogen chloride	CClN	506-77-4
	CL	Chlorine	Cl 2	7782-50-5
	CN, a-chloroacetophenone, phenacyl chloride, chloromethyl phenyl ketone	2-Chloro-1-phenylethanone	C 8H 7ClO	532-27-4
	CR, dibenzoxazepine	Dibenz[ b,f][1,4]oxazepine	C 13H 9NO	257-07-8
	CS, o-chlorobenzylidine malononitrile, 2-chlorobenzalmalononitrile	[(2-Chlorophenyl)methylene]propanedinitrile	C 10H 5ClN 2	2698-41-1
	CX, phosgene oxime	Carbonimidic dichloride, hydroxy	CHCl 2NO	1794-86-1
	DA, diphenylchloroarsine, Clark I	Diphenylarsinous chloride	C 12H 10AsCl	712-48-1
	DC, diphenylcyanoarsine, Clark II	Diphenylarsinous cyanide	C 13H 10AsN	23525-22-6
	DM, adamsite	10-Chloro-5,10-dihydrophenarsazine	C 12H 9AsClN	578-94-9
	DP, diphosgene, trichloromethyl chloroformate	Carbonochloridic acid, trichloromethyl ester	C 2Cl 4O 2	503-38-8
	GA, tabun	Dimethylphosphoramidocyanidic acid, ethyl ester	C 5H 11N 2O 2P	77-81-6
	GB, sarin	Methylphosphonofluoridic acid, (1-methylethyl) ester	C 4H 10FO 2P	107-44-8
	GD, soman, pinacolyl methylphosphonyl fluoride	Methylphosphonofluoridic acid, 1,2,2-trimethylpropyl ester	C 7H 16FO 2P	96-64-0
	GF, cyclohexyl sarin	Methylphosphonofluoridic acid, cyclohexyl ester	C 7H 14FO 2P	329-99-7
	H, mustard gas, yperite, sulfur mustard, Kampfstoff Lost	1,1'-Thiobis[2-chloroethane]	C 4H 8Cl 2S	505-60-2
	HN-1, nitrogen mustard	2-Chloro-N-(2-chloroethyl)-N-ethylethanamine	C 6H 13Cl 2N	538-07-8
	HN-2, nitrogen mustard, Mechlorethanamine	2-Chloro-N-(2-chloroethyl)-N-methylethanamine	C 5H 11Cl 2N	51-75-2
	HN-3, nitrogen mustard, Nitrogen Lost	2-Chloro-N,N-bis(2-chloroethyl)ethanamine	C 6H 12Cl 3N	555-77-1
	L, Lewisite	(2-Chloroethenyl)arsonous dichloride	C 2H 2AsCl 3	541-25-3
	LSD, N,N-diethyl lysergamide	9,10-Didehydro-N,N-diethyl-6- methylergoline-8b-carboxamide	C 20H 25N 3O	50-37-3
	PFIB, perfluoroisobutylene	1,1,3,3,3-Pentafluoro-2-trifluoromethyl-1-propene	C 4F 8	382-21-8
	PS, chloropicrin	Trichloronitromethane	CCl 3NO 2	76-06-2
	TP, triphosgene, trichloromethyl carbonate	Carbonic acid, trichloromethyl ester	C 3Cl 6O 3	32315-10-9
	V-gas	Methylphosphonothioic acid, S-[2-(diethylamino)ethyl] O-2-methylpropyl ester	C 11H 26NO 2PS	159939-87-4
	VX	Methylphosphonothioic acid, S-[2-[bis(1-methylethyl)amino]ethyl] O-ethyl ester	C 11H 26NO 2PS	50782-69-9