Home Chemical storage Hazard classes Flammable liquids Hazard class · Division guide
Flammable Liquid (Class 3) Storage Flammable liquids (DOT Class 3 / GHS flammable-liquid categories) are the largest storage group in this database. Category numbers describe relative flash-point severity.
Class, Division, and GHS meaning Class 3 is flammable liquids under DOT. “Division 3” on a multi-hazard label usually points back to that Class 3 flammable-liquid risk. GHS Categories 1–4 refine flash point / boiling point banding used for container sizes, cabinet ratings, and building selection.
Storage implications for rental buildings Match flash point and volume to fire-rated storage, grounding/bonding practices, and segregation from oxidizers. US Hazmat Rentals flammable-storage buildings are commonly specified for Category 1–3 inventories and mixed drum/tote workflows.
Flammable vs non-flammable within this class Chemicals in this category (121) Mapped from free-text hazard class values in Chemical DB. Always verify against the manufacturer SDS.
Acetaldehyde CH3CHO Class 3, Division 6.1 Flammable hazard Flammable Storage
Acetone (CH3)2CO Class 3, Division 2.1 Flammable hazard Flammable Storage
Acetonitrile CH3CN Class 3, Division 6.1 Flammable hazard Flammable Storage
Acetophenone C8H8O Class 3, Division 6.1 Flammable hazard Flammable Storage
Acrylonitrile C3H3N Class 3, Division 2 Flammable hazard Flammable Storage
Allyl Chloride C3H5Cl Class 3, Division 6.1 Flammable hazard Flammable Storage
Allylamine C3H7N Class 3, Division 6.1 Flammable hazard Flammable Storage
Amyl Mercaptan C5H12S Flammable Flammable hazard Flammable Storage
Amyl Nitrate C5H11NO3 Flammable Flammable hazard Flammable Storage
Flammable hazard Flammable Storage
Benzaldehyde C7H6O Flammable liquid (Division 3) Flammable hazard Flammable Storage
Benzene C6H6 Flammable liquid Flammable hazard Flammable Storage
Benzoyl Chloride C7H5ClO Flammable liquid Flammable hazard Flammable Storage
Boron Tribromide BBr3 Class 3, Division 2 Flammable hazard Flammable Storage
Flammable hazard Flammable Storage
Butanol, 2- CH3CH(OH)CH2CH3 3, 6 Flammable hazard Flammable Storage
Flammable hazard Flammable Storage
Butyl Acetate, S- C6H12O2 Class 3, Division 3 Flammable hazard Flammable Storage
Butyl Acrylate, Inhibited C7H12O2 Class 3, Division 3 Flammable hazard Flammable Storage
Butyl Ether C8H18O Class 3, Division 1 Flammable hazard Flammable Storage
Butylamine C4H11N Class 3, Division 2.1 Flammable hazard Flammable Storage
Butylene Oxide C4H8O Class 3, Division 3 Flammable hazard Flammable Storage
Butyllithium C4H9Li Category 2 Flammable hazard Flammable Storage
Butyraldehyde C4H8O Category 2 Flammable hazard Flammable Storage
Butyraldehyde C4H8O Category 2 Flammable hazard Flammable Storage
Flammable hazard Flammable Storage
Calcium Chlorate Ca(ClO3)2 Category 2 Non-flammable Non-Flammable Storage
Non-flammable Non-Flammable Storage
Calcium Oxide CaO Category 2 Non-flammable Non-Flammable Storage
Flammable hazard Flammable Storage
Carbon Disulfide CaS Flammable liquids (Category 2) Non-flammable Non-Flammable Storage
Flammable hazard Flammable Storage
Non-flammable Non-Flammable Storage
Non-flammable Non-Flammable Storage
Flammable hazard Flammable Storage
Chloroacetic Acid ClCH2COOH Category 1 Non-flammable Non-Flammable Storage
Chloroacetonitrile C2H2ClN Category 3 Flammable liquid Flammable hazard Flammable Storage
Chlorobenzene C6H5Cl Category 3 Flammable liquid Flammable hazard Flammable Storage
Chlorodiethyl Silane CH5ClSi Category 2 Flammable liquid Flammable hazard Flammable Storage
Cresol (O-, M-, P-) C7H8O Category 4 Flammable liquids Flammable hazard Flammable Storage
Crotonaldehyde C4H6O Flammable liquids Category 2 Flammable hazard Flammable Storage
Cumene C9H12 Flammable liquids Category 3 Flammable hazard Flammable Storage
Cyclohexylamine C6H13N Flammable liquids, Category 3 Flammable hazard Flammable Storage
Dibutylamine C8H19N Flammable Liquids, Category 3 Flammable hazard Flammable Storage
Dichloroacetyl Chloride C2HCl3O Flammable Liquids, Category 4 Flammable hazard Flammable Storage
Dichlorobutane, 1, 4- C4H8Cl2 Category 3 Flammable Liquid Flammable hazard Flammable Storage
Dichlorodimethyl Ether C2H4Cl2O Category 3 Flammable Liquid Flammable hazard Flammable Storage
Dichloroethyl Ether, 2, 2- C4H8Cl2O Category 3 Flammable Liquid Flammable hazard Flammable Storage
Dichloropropene, 1, 3- C3H4Cl2 Category 2 Flammable Liquid Flammable hazard Flammable Storage
Diethylaluminum Chloride C4H10AlCl Category 2 Flammable Liquid Flammable hazard Flammable Storage
Diethylzinc (C2H5)2Zn Category 2 Flammable Liquid Flammable hazard Flammable Storage
Diisopropyl Ether C6H14O Category 2 Flammable Liquid Flammable hazard Flammable Storage
Diketene, Inhibited C4H4O2 Category 3 Flammable Liquid Flammable hazard Flammable Storage
Dimethyl Sulfate C2H6O4S Category 3 Flammable Liquid Flammable hazard Flammable Storage
Dioxane, 1, 4- C4H8O2 Category 2 Flammable Liquid Flammable hazard Flammable Storage
Epichlorohydrin C3H5ClO Category 3 Flammable Liquid Flammable hazard Flammable Storage
Ethyl Acrylate, Inhibited C5H8O2 Category 2 Flammable Liquids Flammable hazard Flammable Storage
Ethyl Chloroformate C3H5ClO2 Category 3 Flammable Liquid Flammable hazard Flammable Storage
Ethyl Ether (C2H5)2O Category 1 Flammable Liquid Flammable hazard Flammable Storage
Ethyl Methyl Ether C₃H₈O Category 2 Flammable Liquid Flammable hazard Flammable Storage
Ethyl Nitrite C2H5NO2 Category 2 Flammable Liquid Flammable hazard Flammable Storage
Ethylaniline, N- C8H11N Category 4 Flammable Liquid Flammable hazard Flammable Storage
Ethylene Chlorohydrin C2H5ClO Category 3 Flammable Liquid Flammable hazard Flammable Storage
Ethylene Dichloride C2H4Cl2O Category 2 Flammable Liquid Flammable hazard Flammable Storage
Ethylhexyl Acrylate, 2- C11H2002 Flammable Liquids Catagory 4 Flammable hazard Flammable Storage
Ethyltrichlorosilane C2H5CI3Si Flammable liquids catagory 2 Flammable hazard Flammable Storage
Formaldehyde, Anhydrous CH20 Flammable Liquids Category 3 Flammable hazard Flammable Storage
Formic Acid Ch202 Flammable Liquids Category 3 Non-flammable Non-Flammable Storage
Furfural C5H4O2 Flammable Liquids Category 3 Non-flammable Non-Flammable Storage
Gasoline C8H18 Flammable Liquids Catagory 1 Flammable hazard Flammable Storage
Heptane, N- C7H16 Flammable Liquids Catagory 2 Flammable hazard Flammable Storage
Hexamethyldisilazane C6H19NSi2 Flammable liquids Catagory 2 Flammable hazard Flammable Storage
Hexanol, N- C₆H₁₄O Category 2 Flammable Liquid Flammable hazard Flammable Storage
Hydriodic Acid HI Category 3 Flammable Liquid Non-flammable Non-Flammable Storage
Flammable hazard Flammable Storage
Isopropyl Formate C4H8O2 Flammable liquids Category 2 Flammable hazard Flammable Storage
Mesityl Oxide C6H10O Flammable liquids Category 3 Flammable hazard Flammable Storage
Methacrylic Acid, Inhibited C4H602 Flammable liquids Category 4 Flammable hazard Flammable Storage
Methyl Acetate C₃H₆O₂ Flammable liquids Category 2 Flammable hazard Flammable Storage
Methyl Acrylate, Inhibited C₃H₆O₂ Flammable Liquids Category 2 Flammable hazard Flammable Storage
Methyl Alcohol CH3OH Flammable Liquids Category 2 Flammable hazard Flammable Storage
Methyl Butyraldehyde, 2- C5H10O Flammable Liquids Category 2 Flammable hazard Flammable Storage
Methyl Ethyl Ketone C₄H₈O Flammable liquids Category 2 Flammable hazard Flammable Storage
Methyl Methacrylate C5H8O2 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Methyl-1-Butene, 3- C5H10 Flammable liquids Category 1 Flammable hazard Flammable Storage
Methyl-2-Butanol, 2- C5H12O Flammable liquids Category 2 Flammable hazard Flammable Storage
Methyl-2-Butanol, 3- C5H12O Flammable Liquids Category 3 Flammable hazard Flammable Storage
Methyl-2-Propanol, 2- C₄H₁₀O Flammable Liquids Category 2 Flammable hazard Flammable Storage
Methyldichlorosilane CH4Cl2Si Flammable Liquid 2 Flammable hazard Flammable Storage
Methyltrichlorosilane CH3CI3Si Flammable Liquids Category 2 Flammable hazard Flammable Storage
Morpholine C4H9NO Flammable Liquids Category 3 Flammable hazard Flammable Storage
Nitrobenzene, Liquid C6H5NO2 Flammable liquids Category 4 Non-flammable Non-Flammable Storage
Nitrocellulose, Alcohol Wet (C 6H 9(NO 2)O 5) n Flammable liquids Category 1 Flammable hazard Flammable Storage
Nitrocellulose, Collided (C 6H 9(NO 2)O 5) n Flammable Liquids Category 1 Flammable hazard Flammable Storage
Nitrocellulose, Water Wet (C 6H 9(NO 2)O 5) n Flammable Liquids Category 1 Flammable hazard Flammable Storage
Nitropropane C3H7NO2 Flammable Liquids Category 3 Flammable hazard Flammable Storage
Pentane C5H12 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Pentanol, 2- C5H12O Flammable Liquids Category 2 Flammable hazard Flammable Storage
Pentanol, 3- C5H12O Flammable Liquids Category 3 Flammable hazard Flammable Storage
Petroleum Crude CnH2n+2 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Petroleum Ether C6H14 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Propyl Acetate C5H10O2 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Propylene Dichloride C3H6Cl2 Flammable liquids Category 1 Flammable hazard Flammable Storage
Propyltrichlorosilane C3H7Cl3Si Flammable liquids Category 3 Flammable hazard Flammable Storage
Styrene Monomer, Inhibited C8H8 Flammable liquids Category 3 Flammable hazard Flammable Storage
Tetrahydrofuran C4H8O Flammable liquids Category 2 Flammable hazard Flammable Storage
Tetrahydronaphthalene C10H12 Flammable liquids Category 4 Flammable hazard Flammable Storage
Tetramethoxysilane SiC4H12O4 Flammable liquids Category 3 Flammable hazard Flammable Storage
Toluene C₆H₅CH₃ Flammable liquids (Category 2) Flammable hazard Flammable Storage
Toluidine, O- C7H9N Flammable liquids Category 4 Flammable hazard Flammable Storage
Tributylamine C12H27N Flammable liquids Category 4 Flammable hazard Flammable Storage
Trichlorosilane HCl3Si Flammable liquids Category 1 Flammable hazard Flammable Storage
Triethylamine C6H15N Flammable liquids Category 2 Flammable hazard Flammable Storage
Triisobutylaluminum C12H27Al Flammable liquids Category 2 Flammable hazard Flammable Storage
Trimethoxxysilane C3H10O3Si Flammable liquids Category 2 Flammable hazard Flammable Storage
Tripentylamine C15H33N Flammable Liquids Category 2 Flammable hazard Flammable Storage
Turpentine C10H16 Flammable Liquids Category 3 Flammable hazard Flammable Storage
Vinyl Acetate C4H6O2 Flammable Liquids Category 2 Flammable hazard Flammable Storage
Vinyl Ether C4H6O Flammable Liquids Category 2 Flammable hazard Flammable Storage
Vinylidene Chloride, Inhibited C2H2Cl2 Flammable Liquids Category 1 Flammable hazard Flammable Storage
Vinyltoluene CH3C6H4CH Flammable Liquids Category 3 Non-flammable Non-Flammable Storage