Common name	CIPAC Code Number
Halosulfuron	785
Halosulfuron-methyl	785.201
Haloxyfop	438
Haloxyfop-P (formerly Haloxyfop-R)	526
HCH	4
Heptachlor	36
Heptenophos	527
Hexachlorobenzene	161
Hexaconazole	465
Hexaflumuron	698
Hexazinone	374
Hexythiazox	439
Hydrogen cyanide	126
Hydrogen peroxide	755
Hydrogen phosphide	127
Hydroxyethyl isobutyl piperidine carboxylate	668
8-Hydroxyquinoline	677
Hymexazol	528

last update 28.09.2009