CAS 87-90-1
Trichloroisocyanuric acid
三氯异氰尿酸
From the buying desk
Sold as granules and 200 g tablets at 90% available chlorine for pools. It is an oxidizer and a marine pollutant, and it must never be stored or shipped near calcium hypochlorite or ammonium salts. Check the tablet weight, dissolution rate and available chlorine on the COA.
Import Card
Before you order trichloroisocyanuric acid from China, see its register listing, the duty, anti dumping cases and a supplier check on one card, each with its source and date.
Identifiers
- Synonyms
- TCCA, Symclosene
- Formula
- C3Cl3N3O3
- Molecular weight
- 232.41 g/mol
- SMILES
- C1(=O)N(C(=O)N(C(=O)N1Cl)Cl)Cl
- InChIKey
- YRIZYWQGELRKNT-UHFFFAOYSA-N
- HS code (6-digit)
- 293369
Transport and hazard profile
Transport classification, UN number UN2468, IMDG Class 5.1, Packing Group II. Classified as a marine pollutant.
GHS hazard statements, Danger. H-codes, H272, H302, H319, H335, H400, H410. Refer to the substance SDS Section 2 for the full classification.
US and Australian rules for Trichloroisocyanuric acid
Read from the official lists by CAS 87-90-1. Screening only: check the source before you ship, store or report.
California Prop 65
No entryNo entry for CAS 87-90-1 in the OEHHA list dated July 31, 2026.
OSHA exposure limit
No entryNo entry for CAS 87-90-1 in 29 CFR 1910.1000 Tables Z-1 to Z-3.
Australian exposure standard
No entryNo entry for CAS 87-90-1 in the Safe Work Australia workplace exposure standards.
CERCLA reportable quantity
No entryNo entry for CAS 87-90-1 in 40 CFR 302.4 as read on September 24, 2026.
EPCRA Tier II threshold
No entryNot on the Extremely Hazardous Substances list, so the general 10,000 lb Tier II threshold applies where an SDS is required.
Common applications
- · Swimming pool disinfection
- · Drinking water disinfection
- · Textile bleaching
- · Sanitation tablets
Sourcing documentation chain
Every shipment of Trichloroisocyanuric acid from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.
Sourcing Trichloroisocyanuric acid?
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Free download
Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.