P241 — Use explosion-proof electrical, ventilating and lighting equipment.

02 · Legal status

Where P241 is current

GHS is a United Nations model text, revised every two years, and each jurisdiction adopts a revision on its own timetable. A code can be legally current in one system and deleted in another — that is normal, not an error.

Currently in force under: EU CLP, US OSHA HazCom, US HazCom 2012, UN GHS. Sources: EU CLP · US OSHA HazCom · US HazCom 2012 · UN GHS

03 · Substances

Substances carrying P241

Every entry whose harmonised CLP Annex VI classification includes this precautionary statement. Substances with a reference page here open on this site; the rest open on ghssymbols.com. Of these, 8 are group entries such as “beryllium compounds” or “salts of hydrazine” — Annex VI gives them no CAS number, so they are listed by Index No and have no page of their own.

• (2-butyl-5-nitrobenzofuran-3-yl)[4-(3-dibutylaminopropoxy)phenyl]methanone CAS 141645-23-0
• (ethyl-3-oxobutanoato-O'1,O'3)(2-dimethylaminoethanolato)(1-methoxypropan-2-olato)aluminium(III), dimerised Index No 013-006-00-3
• (R)-p-mentha-1,8-diene;d-limonene CAS 5989-27-5
• (S)-methyl-2-chloropropionate CAS 73246-45-4
• (S)-sec-butylamine; (S)-2-aminobutane [1]; (R)-sec-butylamine; (R)-2-aminobutane [2]; sec-butylamine; 2-aminobutane [3] CAS 513-49-5[1]13250-12-
• 1-bromo-2-methylpropyl propionate CAS 158894-67-8
• 1-bromo-3,4,5-trifluorobenzene CAS 138526-69-9
• 1-bromo-3,5-difluorobenzene CAS 461-96-1
• 1-bromopropane; n-propyl bromide CAS 106-94-5
• 1-chloro-2,3-epoxypropane; epichlorhydrin CAS 106-89-8
• 1-chlorobutane; butyl chloride CAS 109-69-3
• 1-chloropentane [1]; 2-chloropentane [2]; 3-chloropentane [3] CAS 543-59-9[1]625-29-6[
• 1-chloropropane [1]; 2-chloropropane [2] CAS 540-54-5[1]75-29-6[2
• 1-dimethylaminopropan-2-ol; dimepranol (INN) CAS 108-16-7
• 1-ethoxypropan-2-ol; 2PG1EE; 1-ethoxy-2-propanol; propylene glycol monoethyl ether [1]; 2-ethoxy-1-methylethyl acetate; 2PG1EEA [2] CAS 1569-02-4[1]54839-24
• 1-isopropyl-4-methylbenzene; p-cymene CAS 99-87-6
• 1-methoxy-2-propanol; monopropylene glycol methyl ether CAS 107-98-2
• 1-methoxy-2-propylamine CAS 37143-54-7
• 1-nitropropane CAS 108-03-2
• 1-pentanol [1]; 3-pentanol [2] CAS 71-41-0[1]584-02-1[2
• 1-tert-butoxypropan-2-ol CAS 57018-52-7
• 1,1-dichloroethane CAS 75-34-3
• 1,1-dichloroethylene; vinylidene chloride CAS 75-35-4
• 1,1-dichloropropene CAS 563-58-6
• 1,1-diethoxyethane; acetal CAS 105-57-7
• 1,1-dimethoxyethane; dimethyl acetal CAS 534-15-6
• 1,1,1,3,3-pentafluorobutane CAS 406-58-6
• 1,1,3,3-tetramethylbutylperoxypivalate CAS 22288-41-1
• 1,2-dichloroethane; ethylene dichloride CAS 107-06-2
• 1,2-dichloroethylene [1]; cis-dichloroethylene [2]; trans-dichloroethylene [3] CAS 540-59-0[1]156-59-2[
• 1,2-dichloropropane; propylene dichloride CAS 78-87-5
• 1,2-diethoxyethane CAS 629-14-1
• 1,2-diethoxypropane CAS 10221-57-5
• 1,2-dimethoxyethane; ethylene glycol dimethyl ether; EGDME CAS 110-71-4
• 1,2-dimethoxypropane CAS 7778-85-0
• 1,2-epoxybutane CAS 106-88-7
• 1,2,4-trimethylbenzene CAS 95-63-6
• 1,3-di(prop-2,2-diyl)benzene bis(neodecanoylperoxide) CAS 117663-11-3
• 1,3-dichloropropene [1]; (Z)-1,3-dichloropropene [2] CAS 542-75-6[1]10061-01-
• 1,3-diethoxypropane CAS 3459-83-4
• 1,3-dioxolane CAS 646-06-0
• 1,3-propylene oxide CAS 503-30-0
• 1,4-dimethylcyclohexane CAS 589-90-2
• 1,4-dioxane CAS 123-91-1
• 2-(2-butoxyethoxy)ethyl thiocyanate CAS 112-56-1
• 2-(isocyanatosulfonylmethyl)benzoic acid methyl ester; (alt.):methyl 2-(isocyanatosulfonylmethyl)benzoate CAS 83056-32-0
• 2-aminoethyldimethylamine; 2-dimethylaminoethylamine CAS 108-00-9
• 2-aminopropane; isopropylamine CAS 75-31-0
• 2-bromopropane CAS 75-26-3
• 2-diethylaminoethanol; N,N-diethylethanolamine CAS 100-37-8
• 2-dimethylaminoethanol; N,N-dimethylethanolamine CAS 108-01-0
• 2-ethoxyethanol; ethylene glycol monoethyl ether CAS 110-80-5
• 2-ethoxyethyl acetate; ethylglycol acetate CAS 111-15-9
• 2-fluoro-5-trifluoromethylpyridine CAS 69045-82-5
• 2-fluoro-6-trifluoromethylpyridine CAS 94239-04-0
• 2-methoxy-1-methylethyl acetate CAS 108-65-6
• 2-methoxy-2-methylbutane; tert-amyl methyl ether CAS 994-05-8
• 2-methoxyethanol; ethylene glycol monomethyl ether CAS 109-86-4
• 2-methoxyethyl acrylate CAS 3121-61-7
• 2-methoxypropanol CAS 1589-47-5
• 2-methoxypropyl acetate CAS 70657-70-4
• 2-methyl-2-azabicyclo[2.2.1]heptane CAS 4524-95-2
• 2-methyl-3-(trimethoxysilyl)propyl-2-propenoate hydrolysis product with silica CAS 125804-20-8
• 2-methylaziridine; propyleneimine CAS 75-55-8
• 2-methylbutan-2-ol; tert-pentanol CAS 75-85-4
• 2-methylcyclohexanone CAS 583-60-8
• 2-methylpropan-1-ol; iso-butanol CAS 78-83-1
• 2-methylpropan-2-ol; tert-butyl alcohol CAS 75-65-0
• 2-methylpyridine; 2-picoline CAS 109-06-8
• 2-nitropropane CAS 79-46-9
• 2-phenylpropene; α-methylstyrene CAS 98-83-9
• 2,2-dichloro-1,3-benzodioxol CAS 2032-75-9
• 2,3-dichloropropene; 2,3-dichloropropylene CAS 78-88-6
• 2,4-dimethylpentan-3-one; di-isopropyl ketone CAS 565-80-0
• 2,4,4-trimethylpent-1-ene CAS 107-39-1
• 2,4,4-trimethylpentene CAS 25167-70-8
• 2,4,6-trimethyl-1,3,5-trioxane; paraldehyde CAS 123-63-7
• 2,6-dimethylheptan-4-one; di-isobutyl ketone CAS 108-83-8
• 3-aminopropyldiethylamine; N,N-diethyl-1,3-diaminopropane CAS 104-78-9
• 3-aminopropyldimethylamine; N,N-dimethyl-1,3-diaminopropane CAS 109-55-7
• 3-chloro-2-methylpropene CAS 563-47-3
• 3-chloro-4,5,α, α,α-pentafluorotoluene CAS 77227-99-7
• 3-chloropropene; allyl chloride CAS 107-05-1
• 3-hydroxy-1,1-dimethylbutyl 2-ethyl-2-methylheptaneperoxoate Index No 617-016-00-4
• 3-iodpropene; allyl iodide CAS 556-56-9
• 3-methylbutan-2-one; methyl isopropyl ketone CAS 563-80-4
• 3a,4,7,7a-tetrahydro-4,7-methanoindene CAS 77-73-6
• 4-methoxy-4-methylpentan-2-one CAS 107-70-0
• 4-methylpent-3-en-2-one; mesityl oxide CAS 141-79-7
• 4-methylpentan-2-ol; methyl isobutyl carbinol CAS 108-11-2
• 4-methylpyridine; 4-picoline CAS 108-89-4
• 5-chloro-2,3-difluoropyridine CAS 89402-43-7
• 5-methylheptan-3-one CAS 541-85-5
• 5-methylhexan-2-one; isoamyl methyl ketone CAS 110-12-3
• 7-methylocta-1,6-diene CAS 42152-47-6
• acetaldehyde;; ethanal CAS 75-07-0
• acetic acid CAS 64-19-7
• acetic anhydride CAS 108-24-7
• acetone CAS 67-64-1
• acetonitrile CAS 75-05-8
• acetyl chloride CAS 75-36-5
• acrolein; prop-2-enal; acrylaldehyde CAS 107-02-8
• acrylic acid; prop-2-enoic acid CAS 79-10-7
• acrylonitrile CAS 107-13-1
• allyl alcohol CAS 107-18-6
• allyl glycidyl ether; allyl 2,3-epoxypropyl ether; prop-2-en-1-yl 2,3-epoxypropyl ether CAS 106-92-3
• allyl methacrylate; 2-methyl-2-propenoic acid 2-propenyl ester CAS 96-05-9
• allylamine CAS 107-11-9
• benzene CAS 71-43-2
• benzyldimethylamine CAS 103-83-3
• bis(1-methylethyl)-dimethoxysilane CAS 18230-61-0
• bis(2-methoxyethyl) ether CAS 111-96-6
• bis(2,4,4-trimethylpentyl)dithiophosphonic acid CAS 107667-02-7
• bis(chloromethyl) ether; oxybis(chloromethane) CAS 542-88-1
• bis(N-methyl-N-phenylhydrazine)sulfate CAS 618-26-8
• bromobenzene CAS 108-86-1
• bromoethane; ethyl bromide CAS 74-96-4
• butan-1-ol; n-butanol CAS 71-36-3
• butan-2-ol [1]; (S)-butan-2-ol [2]; (R)-butan-2-ol [3]; (±)-butan-2-ol [4] CAS 78-92-2[1]4221-99-2[
• butocarboxim (ISO); 3-(methylthio)-2-butanone O-[(methylamino)carbonyl]oxime CAS 34681-10-2
• butyl (dialkyloxy(dibutoxyphosphoryloxy))titanium (trialkyloxy)titanium phosphate Index No 015-142-00-9
• butyl butyrate CAS 109-21-7
• butyl chloroformate; chloroformic acid butyl ester CAS 592-34-7
• butyl formate [1]; tert-butyl formate [2]; isobutyl formate [3] CAS 592-84-7[1]762-75-4[
• butyl glycidyl ether; butyl 2,3-epoxypropyl ether CAS 2426-08-6
• butyl nitrite CAS 544-16-1
• butylamine CAS 109-73-9
• butyraldehyde CAS 123-72-8
• butyryl chloride CAS 141-75-3
• carbon disulphide CAS 75-15-0
• chlormethyl methyl ether; chlorodimethyl ether CAS 107-30-2
• chlorobenzene CAS 108-90-7
• chloroprene (stabilised); 2-chlorobuta-1,3-diene (stabilised) CAS 126-99-8
• crotonaldehyde; 2-butenal [1]; (E)-2-butenal; (E)-crotonaldehyde [2] CAS 4170-30-3[1]123-73-9
• Cumene CAS 98-82-8
• cyclohexane CAS 110-82-7
• cyclohexanone CAS 108-94-1
• cyclohexylamine CAS 108-91-8
• cyclopentane CAS 287-92-3
• cyclopentanone CAS 120-92-3
• cyclopentyl chloroformate CAS 50715-28-1
• di-n-butyl ether; dibutyl ether CAS 142-96-1
• di-n-butylamine CAS 111-92-2
• di-tert-(C12-14)-alkylammonium 2-benzothiazolylthiosuccinate CAS 125078-60-6
• di-tert-butyl peroxide CAS 110-05-4
• diethyl ether CAS 60-29-7
• diethylamine CAS 109-89-7
• diisopropyl ether [1]; dipropyl ether [2] CAS 108-20-3[1]111-43-3[
• diisopropylamine CAS 108-18-9
• diketene; diketen CAS 674-82-8
• dimethyl (2S)-2-hydroxysuccinate CAS 617-55-0
• dimethyl carbonate CAS 616-38-6
• dimethyl disulphide CAS 624-92-0
• dimethyldichlorosilane CAS 75-78-5
• dipentene; limonene [1]; (S)-p-mentha-1,8-diene; l-limonene [2]; trans-1-methyl-4-(1-methylvinyl)cyclohexene [3]; (±)-1-methyl-4-(1-methylvinyl)cyclohexene [4] CAS 138-86-3[1]5989-54-8
• dipropylamine CAS 142-84-7
• ethanethiol; ethyl mercaptan CAS 75-08-1
• ethanol CAS 64-17-5
• ethyl 3,3-bis(tert-pentylperoxy)butyrate CAS 67567-23-1
• ethyl acetate CAS 141-78-6
• ethyl acrylate CAS 140-88-5
• ethyl chloroformate CAS 541-41-3
• ethyl formate CAS 109-94-4
• ethyl lactate; ethyl DL-lactate [1]; ethyl (S)-2-hydroxypropionate; ethyl L-lactate; ethyl-(S)-lactate [2] CAS 97-64-3[1]687-47-8[2
• ethyl methacrylate CAS 97-63-2
• ethyl propionate CAS 105-37-3
• ethylbenzene CAS 100-41-4
• ethyldimethylamine CAS 598-56-1
• ethylenediamine; 1,2-diaminoethane CAS 107-15-3
• ethyleneimine; aziridine CAS 151-56-4
• ethynyl cyclopropane CAS 6746-94-7
• formic acid CAS 64-18-6
• furan CAS 110-00-9
• gasoline CAS 86290-81-5
• heptan-2-one; methyl amyl ketone CAS 110-43-0
• heptan-3-one; butyl ethyl ketone CAS 106-35-4
• heptan-4-one; di-n-propyl ketone CAS 123-19-3
• heptane CAS 142-82-5[1]108-08-7[
• hexan-2-one; methyl butyl ketone; butyl methyl ketone; methyl-n-butyl ketone CAS 591-78-6
• hexane CAS 110-54-3
• hexane (containing < 5 % n-hexane (203-777-6)); 2-methylpentane [1]; 3-methylpentane [2]; 2,2-dimethylbutane [3]; 2,3-dimethylbutane [4] CAS 107-83-5[1]96-14-0[2
• hydrazine CAS 302-01-2
• hydrogen cyanide; hydrocyanic acid CAS 74-90-8
• isobutyl acrylate CAS 106-63-8
• isobutyl but-3-enoate CAS 24342-03-8
• isobutyl methacrylate CAS 97-86-9
• isobutyl nitrite CAS 542-56-3
• isobutylisopropyldimethoxysilane CAS 111439-76-0
• isobutyryl chloride CAS 79-30-1
• isopentane; 2-methylbutane CAS 78-78-4
• isopentyl formate [1]; pentyl formate [2] CAS 110-45-2[1]35073-27-
• isopentyl propionate [1]; pentyl propionate [2]; 2-methylbutyl propionate [3] CAS 105-68-0[1]624-54-4[
• isoprene (stabilised); 2-methyl-1,3-butadiene CAS 78-79-5
• isopropyl alcohol CAS 67-63-0
• isopropyl chloroacetate CAS 105-48-6
• isopropyl propionate CAS 637-78-5
• mesitylene; 1,3,5-trimethylbenzene CAS 108-67-8
• methacrylonitrile; 2-methyl-2-propene nitrile CAS 126-98-7
• methanol CAS 67-56-1
• methyl acetate CAS 79-20-9
• methyl acrylate; methyl propenoate CAS 96-33-3
• methyl chloroacetate CAS 96-34-4
• methyl chloroformate CAS 79-22-1
• methyl ethyl ketone CAS 78-93-3
• methyl formate CAS 107-31-3
• methyl isobutyl ketone CAS 108-10-1
• methyl isocyanate CAS 624-83-9
• methyl lactate [1]; methyl (±)-lactate [2]; methyl (R)-lactate [3]; methyl (S)-(-)-lactate [4] CAS 547-64-8[1]2155-30-8
• methyl methacrylate CAS 80-62-6
• methyl propionate CAS 554-12-1
• methylcyclohexane CAS 108-87-2
• morpholine CAS 110-91-8
• n-butyl acetate CAS 123-86-4
• n-butyl acrylate CAS 141-32-2
• n-butyl methacrylate CAS 97-88-1
• n-butyl propionate [1]; sec-butyl propionate [2]; tert-butyl propionate [3] CAS 590-01-2[1]591-34-4[
• n-butyronitrile CAS 109-74-0
• N,N-diethyl-N',N'-dimethylpropan-1,3-diyl-diamine CAS 62478-82-4
• N,N-dimethylhydrazine CAS 57-14-7
• N,N,N',N'-tetramethylethylenediamine CAS 110-18-9
• Naphthenic acids, copper salts; copper naphthenate CAS 1338-02-9
• nitroethane CAS 79-24-3
• nitromethane CAS 75-52-5
• O-ethylhydroxylamine CAS 624-86-2
• O-isobutyl-N-ethoxy carbonylthiocarbamate CAS 103122-66-3
• octane; n-octane [1]; 2,2,4-trimethylpentane [2]; 2,3,3-trimethylpentane [3]; 3,3-dimethylhexane [4]; 2,2,3-trimethylpentane [5]; 2,3,4-trimethylpentane [6]; 3,4-dimethylhexane [7]; 2,3-dimethylhexane [8]; 2,4-dimethylhexane [9]; 4-methylheptane [10]; 3-methylheptane [11]; 2,2-dimethylhexane [12]; 2,5-dimethylhexane [13]; 2-methylheptane [14]; 2,2,3,3-tetramethylbutane [15]; 3-ethyl-2-methylpentane [16]; 3-ethylhexane [17]; 3-ethyl-3-methylpentane [18]; isooctane [19] CAS 111-65-9[1]540-84-1[
• p-mentha-1,3-diene; 1-isopropyl-4-methylcyclohexa-1,3-diene;; alpha-terpinene CAS 99-86-5
• parathion - methyl (ISO); O,O-dimethyl O-4-nitrophenyl phosphorothioate CAS 298-00-0
• pentan-3-one; diethyl ketone CAS 96-22-0
• pentane CAS 109-66-0
• pentane-2,4-dione; acetylacetone CAS 123-54-6
• pentanol isomers, with the exception fo those specified elsewhere in this Annex Index No 603-006-00-7
• pentyl acetate [1]; isopentyl acetate [2]; 1-methylbutyl acetate [3]; 2-methylbutyl acetat [4]; 2(or 3)-methylbutyl acetate [5] CAS 628-63-7[1]123-92-2[
• pentyl formate CAS 638-49-3
• pentyl nitrite [1]; ‘amyl nitrite’, mixed isomers [2] CAS 463-04-7[1]110-46-3[
• piperidine CAS 110-89-4
• prop-2-yn-1-ol; propargyl alcohol CAS 107-19-7
• propan-1-ol; n-propanol CAS 71-23-8
• propanal; propionaldehyde CAS 123-38-6
• propionyl chloride CAS 79-03-8
• propyl acetate [1]; isopropyl acetate [2] CAS 109-60-4[1]108-21-4[
• propyl chloroformate; chloroformic acid propylester; n-propyl chloroformate CAS 109-61-5
• propyl formate [1]; isopropyl formate [2] CAS 110-74-7[1]625-55-8[
• propyl propionate CAS 106-36-5
• Propylbenzene CAS 103-65-1
• propylene oxide; 1,2-epoxypropane; methyloxirane CAS 75-56-9
• propylenediamine CAS 78-90-0
• pyridine CAS 110-86-1
• R-1-chloro-2,3-epoxypropane CAS 51594-55-9
• reaction mass of: bis(isotridecylammonium)mono(di-(4-methylpent-2-yloxy)thiophosphorothionylisopropyl)phosphate; isotridecylammonium bis(di-(4-methylpent-2-yloxy)thiophosphorothionylisopropyl)phosphate Index No 015-172-00-2
• reaction product of: 1,2,3-propanetricarboxylic acid, 2-hydroxy, diethyl ester, 1-propanol and zirconium tetra-n-propanolate Index No 650-045-00-0
• reaction product of: acetophenone, formaldehyde, cyclohexylamine, methanol and acetic acid Index No 650-018-00-3
• Reaction products of tungsten hexachloride with 2-methylpropan-2-ol, nonylphenol and pentane-2,4-dione Index No 074-002-00-5
• S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate CAS 85702-90-5
• sec-butyl acetate [1]; isobutyl acetate [2]; tert-butyl acetate [3] CAS 105-46-4[1]110-19-0[
• sec-butyl nitrite CAS 924-43-6
• styrene CAS 100-42-5
• tert-butyl acrylate CAS 1663-39-4
• tert-butyl methyl ether; MTBE; 2-methoxy-2-methylpropane CAS 1634-04-4
• tert-butyl nitrite CAS 540-80-7
• tert-butyl propionate CAS 20487-40-5
• tetracarbonylnickel; nickel tetracarbonyl CAS 13463-39-3
• tetraethyl silicate; ethyl silicate CAS 78-10-4
• tetrahydrofuran CAS 109-99-9
• tetrahydrothiophene CAS 110-01-0
• toluene CAS 108-88-3
• trans-methyl-2-ethyl-but-2-enoate CAS 101226-85-1
• trichloro(methyl)silane; methyltrichlorosilane CAS 75-79-6
• trichlorosilane CAS 10025-78-2
• triethylamine CAS 121-44-8
• trimethyl borate CAS 121-43-7
• turpentine, oil CAS 8006-64-2
• vinyl acetate CAS 108-05-4
• xylene CAS 95-47-6[1]106-42-3[2
• α,α,α-trifluorotoluene; benzotrifluoride CAS 98-08-8

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