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Trichloroacetic anhydride

Also known as: TCAA, Perchloroacetic anhydride, Trichloroacetic acid anhydride, Bis(trichloroacetic) anhydride, 2,2,2-Trichloroacetic anhydride

Trichloroacetic anhydride (CAS 4124-31-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4Cl6O3 and a molecular weight of 308.75900 g/mol. Key properties include a boiling point of 139-141 °C60 mm Hg(lit.), a density of 1.69 g/mL at 25 °C(lit.) and a flash point of 98-100°C/11mm. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4124-31-6
Jingsj CID
J-9708-5
Molecular Formula
C4Cl6O3
Molecular Weight
308.75900 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point139-141 °C60 mm Hg(lit.)
Density1.69 g/mL at 25 °C(lit.)
Flash Point98-100°C/11mm
Exact Mass305.79800
PSA43.37000
LogP2.79660
Refractive Indexn20/D 1.484(lit.)

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Trichloroacetic anhydride?

The CAS number of Trichloroacetic anhydride is 4124-31-6.

What are the molecular formula and molecular weight of Trichloroacetic anhydride?

Trichloroacetic anhydride has molecular formula C4Cl6O3 and molecular weight 308.75900 g/mol.

Is Trichloroacetic anhydride hazardous?

Trichloroacetic anhydride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Trichloroacetic anhydride?

For Trichloroacetic anhydride, Upstream Products: Trichloroacetic acid, Trichloroacetyl chloride, Dichloromethane; Downstream Products: 2,2,2-Trichloro-1-(1H-pyrrol-2-yl)ethan-1-one, 2-[(2,2,2-trichloroacetyl)amino]acetic acid, 8-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Trichloroacetic anhydride (CAS 4124-31-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9708-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.