UN number lookup

Find the four-digit UN number, name, hazard class and emergency response guide for 2,373 dangerous goods, as listed for transport by road, rail, sea and air.

2,373 UN numbers

UN number	Name	Hazard class	ERG guide
0004	Ammonium picrate, dry or wetted with less than 10 percent water, by massExplosives, guide 112	Explosives	112
0005	Cartridges for weapons, with bursting chargeExplosives, guide 112	Explosives	112
0006	Cartridges for weapons, with bursting chargeExplosives, guide 112	Explosives	112
0007	Cartridges for weapons, with bursting chargeExplosives, guide 112	Explosives	112
0009	Ammunition, incendiary with or without burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0010	Ammunition, incendiary with or without burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0012	Cartridges for weapons, inert projectile or Cartridges, small armsExplosives, guide 114	Explosives	114
0014	Cartridges for weapons, blank or Cartridges, small arms, blankExplosives, guide 114	Explosives	114
0015	Ammunition, smoke, with or without burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0016	Ammunition, smoke, with or without burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0018	Ammunition, tear-producing with burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0019	Ammunition, tear-producing with burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0020	Ammunition, toxic with burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0021	Ammunition, toxic with burster, expelling charge, or propelling chargeExplosives, guide 112	Explosives	112
0027	Black powder or Gunpowder, granular or as a mealExplosives, guide 112	Explosives	112
0028	Black powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pelletsExplosives, guide 112	Explosives	112
0029	Detonators, electric, non-electric, for blastingExplosives, guide 112	Explosives	112
0030	Detonators, electric, non-electric, for blastingExplosives, guide 112	Explosives	112
0033	Bombs, with bursting chargeExplosives, guide 112	Explosives	112
0034	Bombs, with bursting chargeExplosives, guide 112	Explosives	112
0035	Bombs, with bursting chargeExplosives, guide 112	Explosives	112
0037	Bombs, photo-flashExplosives, guide 112	Explosives	112
0038	Bombs, photo-flashExplosives, guide 112	Explosives	112
0039	Bombs, photo-flashExplosives, guide 112	Explosives	112
0042	Boosters, without detonatorExplosives, guide 112	Explosives	112
0043	Bursters, explosiveExplosives, guide 112	Explosives	112
0044	Primers, cap typeExplosives, guide 114	Explosives	114
0048	Charges, demolitionExplosives, guide 112	Explosives	112
0049	Cartridges, flashExplosives, guide 112	Explosives	112
0050	Cartridges, flashExplosives, guide 112	Explosives	112
0054	Cartridges, signalExplosives, guide 112	Explosives	112
0055	Cases, cartridge, empty with primerExplosives, guide 114	Explosives	114
0056	Charges, depthExplosives, guide 112	Explosives	112
0059	Charges, shaped, without detonatorExplosives, guide 112	Explosives	112
0060	Charges, supplementary explosiveExplosives, guide 112	Explosives	112
0065	Cord, detonating, flexibleExplosives, guide 112	Explosives	112
0066	Cord, igniterExplosives, guide 114	Explosives	114
0070	Cutters, cable, explosiveExplosives, guide 114	Explosives	114
0072	Cyclotrimethylenetrinitramine, wetted or Cyclonite, wetted or Hexogen, wetted or RDX, wetted with not less than 15 percent water by massExplosives, guide 112	Explosives	112
0073	Detonators for ammunitionExplosives, guide 112	Explosives	112
0074	Diazodinitrophenol, wetted with not less than 40 percent water or mixture of alcohol and water, by massExplosives, guide 112	Explosives	112
0075	Diethyleneglycol dinitrate, desensitized with not less than 25 percent non-volatile water-insoluble phlegmatizer, by massExplosives, guide 112	Explosives	112
0076	Dinitrophenol, dry or wetted with less than 15 percent water, by massExplosives, guide 112	Explosives	112
0077	Dinitrophenolates alkali metals, dry or wetted with less than 15 percent water, by massExplosives, guide 112	Explosives	112
0078	Dinitroresorcinol, dry or wetted with less than 15 percent water, by massExplosives, guide 112	Explosives	112
0079	Hexanitrodiphenylamine or Dipicrylamine or HexylExplosives, guide 112	Explosives	112
0081	Explosive, blasting, type AExplosives, guide 112	Explosives	112
0082	Explosive, blasting, type BExplosives, guide 112	Explosives	112
0083	Explosive, blasting, type CExplosives, guide 112	Explosives	112
0084	Explosive, blasting, type DExplosives, guide 112	Explosives	112

Frequently looked-up numbers

The nine hazard classes

Every UN number is assigned to one of nine classes, shown on the diamond-shaped placard on vehicles and packages.

Class 1: Explosives379 numbers. Class 1 covers explosive substances and articles, from blasting explosives to fireworks and ammunition.
Class 2: Gases241 numbers. Class 2 covers gases, whether compressed, liquefied, dissolved under pressure or refrigerated.
Class 3: Flammable liquids406 numbers. Class 3 covers flammable liquids such as gasoline, diesel, solvents, paints and alcohols.
Class 4: Flammable solids294 numbers. Class 4 covers flammable solids and other substances that can catch fire.
Class 5: Oxidizers and organic peroxides156 numbers. Class 5 covers substances that supply oxygen or otherwise intensify a fire.
Class 6: Toxic and infectious substances529 numbers. Class 6 covers poisons and infectious material.
Class 7: Radioactive material33 numbers. Class 7 covers radioactive material, from medical isotopes to nuclear fuel.
Class 8: Corrosives281 numbers. Class 8 covers corrosive substances such as acids, alkalis and battery fluid, which can destroy skin or corrode metal on contact.
Class 9: Miscellaneous dangerous goods41 numbers. Class 9 covers dangerous goods that don't fit any other class, including lithium batteries, dry ice, environmentally hazardous substances, elevated-temperature materials and magnetized material.

What is a UN number?

A UN number is a four-digit code, from UN 0004 upward, that identifies a dangerous substance or article in transport. Numbers are assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods and appear on shipping papers, package labels and the orange panels on tank trucks and rail cars.

Emergency responders use the number to look up the right response guide, and shippers use it to find the packaging, labelling and documentation rules that apply. Read more about UN numbers and hazard classes.