Physical hazard · Flammable liquids
H226 — Flammable liquid and vapour
Physical hazard statements describe what the substance itself can do — explode, ignite, react, corrode metal. 129 substances with a harmonised EU classification carry this code.
EU CLP: currentUS OSHA HazCom: currentUS HazCom 2012: currentUN GHS: current
01 · Wording
What H226 says
Official
Flammable liquid and vapour.
Source
CLP Annex III · Physical hazards
Classification 
Flammable liquids GHS chapter 2.6
Category 3 · pictogram GHS02 (flame) · signal word Warning
UN GHS history
Unchanged since 2009.
Rev.3 2009
Rev.4 2011
Rev.5 2013
Rev.6 2015
Rev.7 2017
Rev.8 2019
Rev.9 2021
Rev.10 2023
Rev.11 2025
wording never changed
Present in every UN GHS edition from Rev.3 (2009) to Rev.11 (2025), with the same wording throughout.
Nine editions of the UN model text, 86 hazard statements, 19 of which ever moved. Read the full story in what changed in UN GHS Rev.11.
02 · Legal status
Where H226 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.
| Jurisdiction | Basis | Status of H226 |
|---|---|---|
| EU CLP | Regulation (EC) 1272/2008 CLP Annex IV, Part 2 (consolidated) | Current |
| US OSHA HazCom | 29 CFR 1910.1200 Appendix C UN GHS Rev.7 (final rule of 20 May 2024) | Current |
| US HazCom 2012 | legacy · GHS Rev.3 UN GHS Rev.3, Annex 3 | Current |
| UN GHS | Rev.11 (2025) UN GHS Rev.11, Annex 3 | Current |
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 H226
Every entry whose harmonised CLP Annex VI classification includes this hazard statement. Substances with a reference page here open on this site; the rest open on ghssymbols.com. Of these, 5 are group entries such as “salts of picric acid” or “beryllium compounds” — 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
- 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-chloro-2,3-epoxypropane; epichlorhydrin CAS 106-89-8
- 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-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
- 1,2,4-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
- 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-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-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-methylcyclohexanone CAS 583-60-8
- 2-methylpropan-1-ol; iso-butanol CAS 78-83-1
- 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
- 2,4,6-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-4,5,α, α,α-pentafluorotoluene CAS 77227-99-7
- 3-hydroxy-1,1-dimethylbutyl 2-ethyl-2-methylheptaneperoxoate Index No 617-016-00-4
- 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
- acetic acid CAS 64-19-7
- acetic anhydride CAS 108-24-7
- acrylic acid; prop-2-enoic acid CAS 79-10-7
- 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
- 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
- bromobenzene CAS 108-86-1
- 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 butyrate CAS 109-21-7
- butyl chloroformate; chloroformic acid butyl ester CAS 592-34-7
- butyl glycidyl ether; butyl 2,3-epoxypropyl ether CAS 2426-08-6
- chlorobenzene CAS 108-90-7
- Cumene CAS 98-82-8
- cyclohexanone CAS 108-94-1
- cyclohexylamine CAS 108-91-8
- 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
- diketene; diketen CAS 674-82-8
- dimethyl (2S)-2-hydroxysuccinate CAS 617-55-0
- 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
- ethyl 3,3-bis(tert-pentylperoxy)butyrate CAS 67567-23-1
- 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
- ethylenediamine; 1,2-diaminoethane CAS 107-15-3
- formic acid CAS 64-18-6
- 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
- hexan-2-one; methyl butyl ketone; butyl methyl ketone; methyl-n-butyl ketone CAS 591-78-6
- hydrazine CAS 302-01-2
- isobutyl acrylate CAS 106-63-8
- isobutyl but-3-enoate CAS 24342-03-8
- isobutyl methacrylate CAS 97-86-9
- isobutylisopropyldimethoxysilane CAS 111439-76-0
- isopentyl propionate [1]; pentyl propionate [2]; 2-methylbutyl propionate [3] CAS 105-68-0[1]624-54-4[
- isopropyl chloroacetate CAS 105-48-6
- mesitylene; 1,3,5-trimethylbenzene CAS 108-67-8
- methyl chloroacetate CAS 96-34-4
- methyl lactate [1]; methyl (±)-lactate [2]; methyl (R)-lactate [3]; methyl (S)-(-)-lactate [4] CAS 547-64-8[1]2155-30-8
- 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,N-diethyl-N',N'-dimethylpropan-1,3-diyl-diamine CAS 62478-82-4
- Naphthenic acids, copper salts; copper naphthenate CAS 1338-02-9
- nitroethane CAS 79-24-3
- nitromethane CAS 75-52-5
- O-isobutyl-N-ethoxy carbonylthiocarbamate CAS 103122-66-3
- 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
- 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
- prop-2-yn-1-ol; propargyl alcohol CAS 107-19-7
- propyl propionate CAS 106-36-5
- Propylbenzene CAS 103-65-1
- propylenediamine CAS 78-90-0
- 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: acetophenone, formaldehyde, cyclohexylamine, methanol and acetic acid Index No 650-018-00-3
- S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate CAS 85702-90-5
- styrene CAS 100-42-5
- tetraethyl silicate; ethyl silicate CAS 78-10-4
- trans-methyl-2-ethyl-but-2-enoate CAS 101226-85-1
- trimethyl borate CAS 121-43-7
- turpentine, oil CAS 8006-64-2
- xylene CAS 95-47-6[1]106-42-3[2
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All hazard statements
The full list of H-codes with the jurisdiction switch lives on the hazard statements hub. For what to do about the hazard, see precautionary statements (P-codes).
Wording quoted from the regulation named above. Substance counts come from harmonised classifications in CLP Annex VI — the statements on a real product also depend on the supplier's own classification. Always check the supplier safety data sheet.