Trichloroisocyanuric acid
CAS: 87-90-1
Low Risk (Adults)
Safety Summary
Hazard ProfileDetailed hazard record — see the risk bands
Risk (Adults)Low
Risk (Children)Low
Risk (Dogs)Moderate
Risk (Cats)Moderate
Regulatory Status
SummaryNo major regulatory flags
Molecular FormulaC3Cl3N3O3
Molecular Weight232.41
Sources
No citations are recorded specifically for the human adult context, so the record-wide source list is shown. It backs the record, not this particular band.
- WHO Guidelines for Safe Recreational Water Environments Vol 2: TCCA Pool Sanitization; HOCl Hydrolysis Product; 90% Available Chlorine; Strong Oxidizer GHS Category 1; Disinfection Byproduct Formation REGULATORY · 2017
- CDC Healthy Swimming: Pool Chemical Safety — Trichloroisocyanuric Acid Incompatibilities; Storage Requirements; Never Mix Pool Chemicals; Free Chlorine Target 1–3 mg/L REGULATORY · 2020
- identity database ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances) REGULATORY · 2026
- where to look PubChem: Toxicity section (CID 6909) PUBCHEM
- Computational Toxicology and Exposure APIs: Data Domains (EPA CCTE) REGULATORY
- CompTox Chemicals Dashboard: Release Notes (EPA) REGULATORY
- OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26) REGULATORY
- Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
- PubChem computed properties for CID 6909 (computed, not measured; as recorded by PubChem) DATABASE · 2026
- where to look Hazardous Substances Data Bank (HSDB), as recorded by PubChem (Experimental Properties, CID 6909; where-to-look, not a source of this value) DATABASE · 2026
- where to look ILO-WHO International Chemical Safety Cards (ICSCs), as recorded by PubChem (Experimental Properties, CID 6909; where-to-look, not a source of this value) DATABASE · 2026
- EPA CompTox CTX API: predicted properties for DTXSID2026523 (Trichloroisocyanuric acid) REFERENCE
- ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) REGULATORY
- PubChem computed structure descriptors for CID 6909 (computed, not measured; as recorded by PubChem) DATABASE · 2026
- Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006: Annex VI, Part 3, Table 3.1 (Official Journal L 353, 31.12.2008) REGULATORY · 2008
Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.
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