Highly Hazardous Chemical List

Please click below for the most current HHC list:

Please note, the below are examples of Highly Hazardous Chemicals in each of the BU/BMC identified HHC categories:

Explosives

(including GHS # H200, H201, H202, H203, H204, H205, H271)

• Ammonium Perchlorate
• Perchloric Acid (>72%) and Inorganic Perchlorate Salts

Flammable Gases

(including GHS # H220, H221)

• Diborane
• Germane

Self-Reactive Substances, Type A:

(including GHS # H251)

• Zirconium, finely powdered

Pyrophoric Liquids and Solids

(including GHS # H250)

Any pyrophoric materials, including but not limited to:

• n-Butyllithium
• tert-Butyllithium
• Diethylzinc
• Organoaluminum compounds
• Raney Nickel Catalyst

Water-Reactive Chemicals, Category 1:

(including GHS # H260)

• Lithium
• Potassium
• Rubidium
• Cesium
• Sodium
• Lithium Aluminum Hydride
• Potassium Hydride
• Sodium Hydride

Acute Toxicity, Category 1 and 2:

(including GHS # H300, H310, and/or H330)

• Cyanides [including hydrogen cyanide, cyanide salts, metal cyanides]
• Cyanogens [including cyanogen bromide]
• Osmium Tetroxide
• Hydrogen Fluoride (Hydrofluoric Acid)
• Alkyl mercury derivatives and other toxic organic mercury compounds [including dimethyl mercury]
• Dimethyl sulfate
• N-Nitrosodimethylamine
• α-Naphthylamine
• Methyl chloromethyl ether
• β-Propiolactone
• Dioxins and Dioxin-Like Polychlorinated Biphenyls and Furans
• Nickel carbonyl
• Organotins [including tributyltin]
• Azoxymethane
• MPTP (for use solely in animals, refer to BU Chemical Administration in Animals program)
• Phosphine
• Hydrogen Sulfide

Select Carcinogens

(including GHS # H350)

• 3,3′, Dichlorobenzidine [and its salts]
• β-Naphthylamine
• Benzidine
• 4-Aminobiphenyl
• 2-Acetylaminofluorene
• Ethyleneimine
• Polycyclic Aromatic Hydrocarbons [including Benzo[a]pyrene and Benz[a]anthracene]
• Streptozotocin

Reproductive Toxicants

(including GHS # H360)

• Retinol palmitate
• 3-Aminopropionitrile fumarate