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Safety Data Sheets / AGent Industrial

Bromochlorodimethylhydantoin-BCDMH

1-Bromo-3-chloro-5,5-dimethylhydantoin · C₅H₆BrClN₂O₂

Signal wordDANGERTransportUN 3085 · Class 5.1 (Oxidising Agent) + Subsidiary Risk 8 (Corrosive)Packing groupIIPoisons scheduleS6SDS version2026.02 · July 2026

Hazards

Oxidiser pictogram
Oxidiser
Corrosive pictogram
Corrosive
Hazardous to the environment pictogram
Hazardous to the environment
Harmful or irritant pictogram
Harmful or irritant
  • H272May intensify fire; oxidiser.
  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H317May cause an allergic skin reaction.
  • H400Very toxic to aquatic life.
Full GHS classification
  • Oxidising Solids Category 2 — H272
  • Acute Toxicity (Oral) Category 4 — H302
  • Skin Corrosion/Irritation Category 1B — H314
  • Skin Sensitisation Category 1 — H317
  • Hazardous to the Aquatic Environment (Acute) Category 1 — H400

Poisons schedule

Schedule 6 (S6) — SUSMP

Used for

Swimming pool and spa sanitiser, algaecide, bactericide; water purification and oxidising agent.

Never

Do NOT mix with other chemicals or acids. Not for domestic / unprotected consumer use.

Transport

UN number
3085
Proper shipping name
OXIDISING SOLID, CORROSIVE, N.O.S. (contains 1-bromo-3-chloro-5,5-dimethylhydantoin)
Class
Class 5.1 (Oxidising Agent) + Subsidiary Risk 8 (Corrosive) — see ADG Table 3.2.3
Packing group
II
Hazchem
1W

Handling

Appearance
Solid (tablet) — white
pH
3.4 – 3.6 @ 0.1% solution
Keep away from
Incompatible with acids, bases, reducing agents, oxidisable / combustible materials, ammonium, urea and nitrogen compounds, chloroisocyanurates. Store away from heat, ignition sources and acids. Segregate per ADG Code segregation rules."

Also known as

BCDMH; pool & spa bromine; brominating tablets

Summary only. The PDF is the Safety Data Sheet: read it before handling, storing or disposing of this product, and keep it with the product.