H400 — Very toxic to aquatic life.

Substances with H400

CAS Number	Name
23422-53-9	formetanate hydrochloride; 3-(N,N-dimethylaminomethyleneamino)phenyl N-methylcarbamate
98886-44-3	fosthiazate (ISO); (RS)-S-sec-butyl-O-ethyl-2-oxo-1,3-thiazolidin-3-ylphosphonothioate
3878-19-1	fuberidazole (ISO); 2-(2-furyl)-1H-benzimidazole
65907-30-4	furathiocarb (ISO); 2,3-dihydro-2,2-dimethyl-7-benzofuryl 2,4-dimethyl-6-oxa-5-oxo-3-thia-2,4-diazadecanoate
60568-05-0	furmecyclox (ISO); N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furamide
111-30-8	glutaral; glutaraldehyde; 1,5-pentanedial
108173-90-6	guazatine (ISO)
100784-20-1	halosulfuron-methyl (ISO); methyl 3-chloro-5-{[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]sulfamoyl}-1-methyl-1H-pyrazole-4-carboxylate
87237-48-7	haloxyfop-etotyl (ISO); 2-ethoxyethyl 2-(4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenoxy)propionate; haloxyfop-(2-ethoxyethyl)
76-44-8	heptachlor (ISO); 1,4,5,6,7,8,8-heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene
1024-57-3	heptachlor epoxide; 2,3-epoxy-1,4,5,6,7,8,8-heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindane
142-82-5[1]108-08-7[	heptane; n-heptane [1] 2,4-dimethylpentane [2] 2,2,3-trimethylbutane [3] 3,3-dimethylpentane [4] 2,3-dimethylpentane [5] 3-methylhexane [6] 2,2-dimethylpentane [7] 2-methylhexane [8] 3-ethylpentane [9] isoheptane [10]
23560-59-0	heptenophos (ISO); 7-chlorobicyclo(3.2.0)hepta-2,6-dien-6-yl dimethyl phosphate
118-74-1	hexachlorobenzene
77-47-4	hexachlorocyclopentadiene
86479-06-3	hexaflumuron (ISO); 1-(3,5-dichloro-4-(1,1,2,2-tetrafluoroethoxy)phenyl)-3-(2,6-difluorobenzoyl)urea
51235-04-2	hexazinone (ISO); 3-cyclohexyl-6-dimethylamino-1-methyl-1,2,3,4-tetrahydro-1,3,5-triazine-2,4-dione
78587-05-0	hexythiazox (ISO); trans-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2-oxo-3-thiazolidine-carboxamide
302-01-2	hydrazine
122-66-7	hydrazobenzene; 1,2-diphenylhydrazine
74-90-8	hydrogen cyanide; hydrocyanic acid
7783-06-4	hydrogen sulphide, hydrogen sulfide
7803-49-8	hydroxylamine ....% [> 55 % in aqueous solution]
5470-11-1[1]10039-54	hydroxylammonium chloride; hydroxylamine hydrochloride [1] bis(hydroxylammonium) sulfate; hydroxylamine sulfate (2:1) [2]
10046-00-1[1]20845-0	hydroxylammonium hydrogensulfate; hydroxylamine sulfate(1:1) [1] hydroxylamine phosphate [2] hydroxylamine dihydrogenphosphate [3] hydroxylamine 4-methylbenzenesulfonate [4]
13465-08-2	hydroxylammonium nitrate
58594-72-2[1]83918-5	imazalil sulphate (ISO) powder; 1- [2-(allyloxy)ethyl-2-(2,4-dichlorophenyl)]-1H-imidazolium hydrogen sulphate [1] (±)-1- [2-(allyloxy)ethyl-2-(2,4-dichlorophenyl)]-1H-imidazolium hydrogen sulphate [2]
114311-32-9	imazamox (ISO); (RS)-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-5-methoxymethylnicotinic acid
138261-41-3	imidacloprid (ISO); (E)-1-(6-chloro- 3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine;(2E)-1-[(6-chloropyridin- 3-yl) methyl]-N-nitroimidazolidin-2-imine
72963-72-5	imiprothrin (ISO); reaction mass of: [2,4-dioxo-(2-propyn-1-yl)imidazolidin-3-yl]methyl(1R)-cis-chrysanthemate; [2,4-dioxo-(2-propyn-1-yl)imidazolidin-3-yl]methyl(1R)-trans-chrysanthemate
173584-44-6[1]144171	indoxacarb (ISO); methyl (4aS)-7-chloro-2-{(methoxycarbonyl)[4-(trifluoromethoxy)phenyl]carbamoyl}-2,5-dihydroindeno[1,2-e][1,3,4]oxadiazine-4a(3H)-carboxylate [1] reaction mass of (S)- Indoxacarb and (R)- Indoxacarb 75:25; methyl 7-chloro-2-{(methoxycarbonyl)[4-(trifluoromethoxy)phenyl]carbamoyl}-2,5-dihydroindeno[1,2-e][1,3,4]oxadiazine-4a(3H)-carboxylate [2]
7553-56-2	iodine
144550-36-7	iodosulfuron-methyl-sodium; sodium ({}{[5-iodo-2-(methoxycarbonyl)phenyl]sulfonyl}}carbamoyl)(4-methoxy-6-methyl-1,3,5-triazin-2-yl)azanide
1689-83-4	ioxynil (ISO); 4-hydroxy-3,5-diiodobenzonitrile
3861-47-0	ioxynil octanoate (ISO); 4-cyano-2,6-diiodophenyl octanoate
36734-19-7	iprodione (ISO); 3-(3,5-dichlorophenyl)-2,4-dioxo-N-isopropylimidazolidine-1-carboxamide
5827-05-4	IPSP; S-ethylsulphinylmethyl O,O-diisopropylphosphorodithioate
42509-80-8	isazofos (ISO); O-(5-chloro-1-isopropyl-1,2,4-triazol-3-yl) O,O-diethyl phosphorothioate
118832-72-7	iso(C10-C14)alkyl (3,5-di-tert-butyl-4-hydroxyphenyl)methylthioacetate
297-78-9	isobenzan (ISO); 1,3,4,5,6,7,8,8-octachloro-1,3,3a,4,7,7a-hexahydro-4,7-methanoisobenzofuran
100181-71-3	isobutyl 3,4-epoxybutyrate
465-73-6	isodrin; (1α,4α,4aβ,5β,8β,8aβ)-1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-dimethanonaphthalene
25311-71-1	isofenphos (ISO); O-ethyl O-2-isopropoxycarbonylphenyl-isopropylphosphoramidothioate
29590-42-9	isooctyl acrylate
2631-40-5	isoprocarb (ISO); 2-isopropylphenyl N-methylcarbamate
65733-16-6	isopropyl (2E,4E,7S)-11-methoxy-3,7,11-trimethyldodeca-2,4-dienoate; S-methoprene
34123-59-6	isoproturon (ISO); 3-(4-isopropylphenyl)-1,1-dimethylurea
141112-29-0	isoxaflutole (ISO); 5-cyclopropyl-1,2-oxazol-4-yl α,α,α-trifluoro-2-mesyl-p-tolyl ketone
18854-01-8	isoxathion (ISO); O,O-diethyl O-5-phenylisoxazol-3-ylphosphorothioate
65277-42-1	ketoconazole; 1-[4-[4-[[(2SR,4RS)-2-(2,4-dichlorophenyl)-2-(imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]ethanone
143390-89-0	kresoxim-methyl (ISO); methyl (E)-2-methoxyimino-[2-(o-tolyloxymethyl)phenyl]acetate
91465-08-6	lambda-cyhalothrin (ISO); reaction mass of (S)-α-cyano-3-phenoxybenzyl(Z)-(1R)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl (Z)-(1S)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate (1:1)
15245-44-0	lead 2,4,6-trinitro-m-phenylene dioxide; lead 2,4,6-trinitroresorcinoxide; lead styphnate
1335-32-6	lead acetate, basic
7758-97-6	lead chromate
12656-85-8	lead chromate molybdate sulfate red; C.I. Pigment Red 104; [This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77605.]
301-04-2	lead di(acetate)
13424-46-9	lead diazide; lead azide
25808-74-6	lead hexafluorosilicate
7784-40-9	lead hydrogen arsenate
7439-92-1	lead powder; [particle diameter < 1 mm]
1344-37-2	lead sulfochromate yellow; C.I. Pigment Yellow 34; [This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77603.]
2164-08-1	lenacil (ISO); 3-cyclohexyl-6,7-dihydro-1H-cyclopenta[d]pyrimidine-2,4(3H,5H)-dione
21609-90-5	leptophos (ISO); O-4-bromo-2,5-dichlorophenyl O-methyl phenylphosphorothioate
58-89-9	lindane (ISO); γ-HCH or γ-BHC; γ-1,2,3,4,5,6-hexachlorocyclohexane
330-55-2	linuron (ISO); 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea
103055-07-8	lufenuron (ISO); N-[2,5-dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)-phenyl-aminocarbonyl]-2,6-difluorobenzamide
108-45-2	m-phenylenediamine
541-69-5	m-phenylenediamine dihydrochloride
108-44-1	m-toluidine; 3-aminotoluene
12057-74-8	magnesium phosphide; trimagnesium diphosphide
30785-74-1	Main component 6 (isomer): asym. 1:2 Cr(III)-complex of: A: 3-hydroxy-4-(2-hydroxy-naphthalene-1-ylazo)naphthalene-1-sulfonic acid, Na-salt and B: 1-[2-hydroxy-5-(4-methoxy-phenylazo)phenylazo]naphthalene-2-ol; Main component 8 (isomer): asym. 1:2 Cr-complex of: A: 3-hydroxy-4-(2-hydroxy-naphthalene-1-ylazo)-naphthalene-1-sulfonic acid, Na-salt and B: 1-[2-hydroxy-5-(4-methoxy-phenylazo)-phenylazo]-naphthalene-2-ol
569-64-2[1]2437-29-8	malachite green hydrochloride [1] malachite green oxalate [2]
121-75-5	malathion (ISO); 1,2-bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate; [containing ≤ 0.03 % isomalathion]
109-77-3	malononitrile
8018-01-7	mancozeb (ISO); manganese ethylenebis(dithiocarbamate) (polymeric) complex with zinc salt
374726-62-2	mandipropamid (ISO); 2-(4-chlorophenyl)-N-{2-[3-methoxy-4-(prop-2-yn-1-yloxy)phenyl]ethyl}-2-(prop-2-yn-1-yloxy)acetamide
12427-38-2	maneb (ISO); manganese ethylenebis(dithiocarbamate) (polymeric)
94-74-6	MCPA (ISO); 4-chloro-o-tolyloxyacetic acid
25319-90-8	MCPA-thioethyl (ISO); S-ethyl (4-chloro-2- methylphenoxy)ethanethioate; S-ethyl 4- chloro-o-tolyloxythioacetate
94-81-5	MCPB (ISO); 4-(4-chloro-o-tolyloxy) butyric acid
2595-54-2	mecarbam (ISO); N-ethoxycarbonyl-N-methylcarbamoylmethyl O,O-diethyl phosphorodithioate
3006-10-8	mecetronium etilsulfate; N-ethyl-N,N-dimethylhexadecan-1-aminium ethyl sulfate; mecetronium ethyl sulphate; [MES]
7085-19-0[1]	mecoprop (ISO); 2-(4-chloro-o-tolyloxy) propionic acid; (RS)-2-(4-chloro-o-tolyloxy)propionic acid [1] 2-(4-chloro-2-methylphenoxy)propionic acid [2]
16484-77-8	mecoprop-P [1] and its salts;; (R)-2-(4-chloro-2-methylphenoxy)propionic acid and its salts
73581-79-0	menadione nicotinamide bisulfite; 1,2,3,4-tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulfonic acid, compound with nicotin-3-amide (1:1)
130-37-0	menadione sodium bisulfite; 2-naphthalenesulfonic acid,1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-, sodium salt
110235-47-7	mepanipyrim; 4-methyl-N-phenyl-6-(1-propynyl)-2-pyrimidinamine
2032-65-7	mercaptodimethur (ISO); methiocarb (ISO); 3,5-dimethyl-4-methylthiophenyl N-methylcarbamate
7439-97-6	mercury
7487-94-7	mercury dichloride; mercuric chloride
628-86-4	mercury difulminate; mercuric fulminate; fulminate of mercury
208465-21-8	mesosulfuron-methyl (ISO); methyl 2-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-α-(methanesulfonamido)-p-toluate;
104206-82-8	mesotrione (ISO); 2-[4-(methylsulfonyl)-2-nitrobenzoyl]-1,3-cyclohexanedione
137-42-8	metam-sodium (ISO); sodium methyldithiocarbamate
41394-05-2	metamitron (ISO); 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5-one
67129-08-2	Metazachlor (ISO); 2-chloro-N-(2,6-dimethylphenyl)-N-(1H-pyrazol-1-ylmethyl)acetamide
18691-97-9	methabenzthiazuron (ISO); 1-(1,3-benzothiazol-2-yl)1,3-dimethylurea
10265-92-6	methamidophos (ISO); O,S-dimethyl phosphoramidothioate
74-93-1	methanethiol; methyl mercaptan

Showing 601–700 of 1040 substances (IUPAC name order).