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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-(2-fluorophenyl)acetone 2836-82-0 Warning
1-(2-fluorophenyl)piperazine 1011-15-0 Danger
1-(2-furoyl)piperazine 40172-95-0 Warning
1-(2-furyl)butane-1,3-dione 25790-35-6 Warning
1-(2-hydroxy-1-naphthyl)ethan-1-one 574-19-6 Warning
1-(2-hydroxy-4,6-dimethoxyphenyl)ethan-1-one 90-24-4 Warning
1-(2-hydroxy-4-methylphenyl)ethan-1-one 6921-64-8 Warning
1-(2-hydroxy-5-methoxyphenyl)ethan-1-one 705-15-7 Danger
1-(2-hydroxy-6-methoxyphenyl)ethan-1-one 703-23-1 Warning
1-[(2-hydroxyethyl)amino]-4-[(3-hydroxypropyl)amino]anthraqu... 67674-26-4 Warning
1-(2-hydroxyethyl)imidazolidin-2-one 3699-54-5 Warning
1-(2-hydroxyethyl)piperidine-4-carboxylic acid 16665-18-2 Warning
1-(2-hydroxyethyl)pyrrolidin-2-one 3445-11-2 Warning
1-(2-hydroxyphenyl)-3-phenylpropan-1-one 3516-95-8 Warning
1-(2-methoxy-1-methylethoxy)propan-2-ol 20324-32-7 Warning
1-(2-methoxyphenyl)piperazinium chloride 5464-78-8 Danger
1-(2-methoxypropoxy)propan-2-ol 13429-07-7 Warning
1-(2-methylbenzyl)piperazine 5321-47-1 Warning
1,2-naphthoquinone 524-42-5 Warning
1-(2-naphthyl)-2-thiourea 3394-04-5 Danger
1-(2-nitrophenyl)piperazine 59084-06-9 Warning
1-(2-oxo-2-phenylethyl)pyridinium bromide 16883-69-5 Warning
1-(2-oxopropyl)pyridinium bromide 17282-41-6 Warning
1-(2-propynyl)cyclohexan-1-ol 19135-08-1 Warning
1-(2-pyridyl)piperazine 34803-66-2 Danger
1-[2-(trifluoromethyl)phenyl]piperazine 63854-31-9 Danger
1,2-vinylenebis(triphenylphosphonium) dibromide 54770-27-3 Warning
1-[3-[[(2,5-dioxopyrrolidinyl)oxy]carbonyl]phenyl]-1H-pyrrol... 58626-38-3 Warning
1,3,2-dioxathiane 2-oxide 4176-55-0 Danger
1,3,2-dioxathiolane-4-methanol 2-oxide 13897-37-5 Warning
1,3,3a,4,9,9a-hexahydro-9-hydroxy-6,7-(methylenedioxy)-4-(3'... 518-28-5 Danger
1,3,3-trimethoxypropene 17576-35-1 Warning
1,3,3-trimethyl-2-[(2-methyl-3H-indol-3-ylidene)ethylidene]i... 3056-93-7 Warning
1,3,3-trimethylcyclohexene 503-47-9 Warning
1-(3,4-dichlorophenyl)ethan-1-one 2642-63-9 Warning
1-(3,4-dichlorophenyl)piperazine 57260-67-0 Danger
1-(3,4-difluorophenyl)ethan-1-one 369-33-5 Warning
1-(3,4-dihydro-2-naphthyl)pyrrolidine 21403-95-2 Warning
1-(3,4-dimethoxyphenyl)acetone 776-99-8 Warning
1-(3,4-dimethylphenyl)ethan-1-one 3637-01-2 Warning
1-(3,4-epoxy-4-methylpentyl)-1-methylallyl acetate 41610-76-8 Danger
1,3,4-thiadiazol-2-amine 4005-51-0 Danger
1,3,4-thiadiazole-2(3H)-thione 18686-82-3 Warning
1-[3,5-bis(trifluoromethyl)phenyl]ethan-1-one 30071-93-3 Warning
1-(3,5-dichlorophenyl)piperazine 55827-50-4 Warning
1-(3,5-dihydroxyphenyl)ethan-1-one 51863-60-6 Warning
1-(3,5-dimethoxyphenyl)-1-methylethyl carbazate 39508-00-4 Warning
1-(3,5-dimethoxyphenyl)ethan-1-one 39151-19-4 Warning
1,3,5,triacetylbenzene 779-90-8 Warning
1,3,5-triazin-2-amine 4122-04-7 Warning