Triclosan
Also known as: 5-Chloro-2-(2,4-dichlorophenoxy)phenol, 2,4,4'-Trichloro-2'-hydroxydiphenyl ether, Irgasan, DP 300, Irgacare MP, Cloxifenol
Triclosan (CAS 3380-34-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H7Cl3O2 and a molecular weight of 289.542 g/mol. Key properties include a melting point of 56-60 °C(lit.), a boiling point of 344.6±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 162.2±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3380-34-5
- Jingsj CID
- J-38519-6
- Molecular Formula
- C12H7Cl3O2
- Molecular Weight
- 289.542 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56-60 °C(lit.) |
|---|---|
| Boiling Point | 344.6±42.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 162.2±27.9 °C |
| Exact Mass | 287.951172 |
| PSA | 29.46000 |
| LogP | 5.17 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.632 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2909500000 |
|---|---|
| Summary | 2909500000 ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Triclosan?
The CAS number of Triclosan is 3380-34-5.
What are the molecular formula and molecular weight of Triclosan?
Triclosan has molecular formula C12H7Cl3O2 and molecular weight 289.542 g/mol.
Is Triclosan hazardous?
Triclosan has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Triclosan?
For Triclosan, Upstream Products: N-Vinyl-2-pyrrolidone, Ibuprofen, Acetaminophen; Downstream Products: Arachidonic acid, alpha-Linolenic acid, 1,2,4-Trichlorobenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triclosan (CAS 3380-34-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38519-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.