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Benzotriazole

CAS 95-14-7 · EC 202-394-1 · C6H5N3

Also known as 1H-benzotriazole, BTA

Handle chemistry safely

Wear gloves and eye protection, work with good ventilation, and read the supplier’s safety data sheet before use. Hazard information here is a summary, not a replacement for it. Dispose of all photographic chemistry correctly, in line with local laws and your local authority’s guidance. Never mix waste solutions, and check the supplier’s safety data sheet before disposing of anything.

Hazards

Official EU classification (harmonised under CLP Annex VI).

Hazardous to the environment

  • H411 Toxic to aquatic life with long lasting effects.

Photographic uses

  • antifoggant/restrainer
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