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H335 — May cause respiratory irritation

Hazard class: Specific target organ toxicity, single exposure · Category 3 (respiratory tract irritation)

1522 substances with this hazard classification

What does H335 mean?

Inhalation may cause irritation of the respiratory tract.

Safety Guidance

Avoid breathing dust, fume, gas, mist, vapours, or spray. Use only outdoors or in a well-ventilated area.

Substances with H335

SubstanceCAS NumberSignal Word
1-(4-fluoro-1-naphthyl)ethan-1-one 316-68-7 Warning
1-(4-fluorophenyl)-4-oxocyclohexanecarbonitrile 56326-98-8 Warning
1-(4-fluorophenyl)-4-(p-tolylsulphonyl)piperazine 4004-97-1 Warning
1-(4-fluorophenyl)cyclohexanecarbonitrile 71486-43-6 Warning
1-(4'-fluorophenyl)piperazine 2252-63-3 Danger
1-(4-hydroxy-3-methoxyphenyl)acetone 2503-46-0 Warning
1-(4-hydroxyphenyl)-1H-pyrrole-2,5-dione 7300-91-6 Warning
1-(4-iodophenyl)ethan-1-one 13329-40-3 Warning
1-[4-(methoxymethyl)phenyl]ethan-1-one 22072-50-0 Warning
1-(4-methoxyphenyl)butane-1,3-dione 4023-80-7 Warning
1-(4-methoxyphenyl)cyclohexanecarbonitrile 36263-51-1 Warning
1-(4-methoxyphenyl)cyclopentane-1-carboxylic acid 43050-28-8 Warning
1-(4-methoxyphenyl)cyclopropane-1-carboxylic acid 16728-01-1 Warning
1-(4-methoxyphenyl)piperazine 38212-30-5 Warning
1-(4-methoxyphenyl)piperazinium chloride 84145-43-7 Danger
1-(4-methylphenyl)-3-(1-pyrrolidinyl)propan-1-one hydrochlor... 97635-24-0 Warning
1-(4-methylphenyl)ethylamine 586-70-9 Danger
1-[4-(methylsulphonyl)phenyl]ethan-1-one 10297-73-1 Warning
1-[4-(methylthio)phenyl]ethan-1-one 1778-09-2 Warning
1-(4-morpholinomethyl)-1H-benzotriazole 5472-71-9 Warning
1,4-naphthoquinone 130-15-4 Danger
1-(4-nitrophenyl)-3-(3-pyridylmethyl)urea 53558-25-1 Danger
1-(4-nitrophenyl)glycerol 2207-68-3 Warning
1-(4-nitrophenyl)piperazine 6269-89-2 Warning
1-(4-nitrophenyl)piperidine 6574-15-8 Warning
1,4-oxathiane 15980-15-1 Warning
1,4-oxathiane 4,4-dioxide 107-61-9 Warning
1-[4-(phenylamino)naphthyl]-1H-pyrrole-2,5-dione 50539-45-2 Warning
1-[4-(phenylazo)phenyl]-1H-pyrrole-2,5-dione 16201-96-0 Warning
1-(4-(phenylazo)phenylazo)-2-naphthol 85-86-9 Warning
1,4-phenylenebis[dimethylsilane] 2488-01-9 Warning
1,4-phenylene bismethacrylate 3049-31-8 Warning
1,4-phenylene diacrylate 6729-79-9 Warning
1-[4-(piperidin-1-yl)phenyl]ethan-1-one 10342-85-5 Warning
1-(4-propylphenyl)ethan-1-one 2932-65-2 Warning
1-(4-pyridyl)acetone 6304-16-1 Danger
1-[4-(trifluoromethoxy)phenyl]ethan-1-one 85013-98-5 Warning
1-[4-(trifluoromethyl)phenyl]ethan-1-one 709-63-7 Warning
1-[4-(trifluoromethyl)phenyl]piperazine 30459-17-7 Warning
1,5,5-trimethylimidazolidine-2,4-dione 6851-81-6 Warning
1,5,6,7-tetrahydro-6-thioxo-4H-pyrazolo[3,4-d]pyrimidin-4-on... 24521-76-4 Warning
1,5-anhydro-2-deoxy-D-arabino-hex-1-enitol 13265-84-4 Warning
1,5-anhydro-2-deoxy-D-lyxo-hex-1-enitol 21193-75-9 Warning
1,5-anhydro-D-glucitol 154-58-5 Warning
1,5-bis[2-[(2-methyl-1-oxoallyl)oxy]ethyl] dihydrogen benzen... 83418-61-5 Warning
1-(5-bromo-2-thienyl)ethan-1-one 5370-25-2 Warning
1-(5-chloro-2-hydroxyphenyl)ethan-1-one 1450-74-4 Warning
1-5-diamino-2-bromo-4,8-dihydroxyanthraquinone 27312-17-0 Warning
1,5-diamino-4,8-dihydroxyanthraquinone 145-49-3 Warning
1,5-diaminoanthraquinone 129-44-2 Warning