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Chlorendic anhydride

Also known as: 1,4,5,6,7,7-hexachloro-5-norbornene-2,3-dicarboxylic anhydride, Hexachloroendomethylenetetrahydrophthalic anhydride, Het anhydride, 1,4,5,6,7,7-hexachloro-endo-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, Perchlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione, 1,7,8,9,10,10-hexachloro-4-oxatricyclo[5.2.1.0]dec-8-ene-3,5-dione, HET anhydride, CA, Chloran 542, 1,4,5,6,7,7-hexachloro-endo-5-norbornene-2,3-dicarboxylic anhydride

Chlorendic anhydride (CAS 115-27-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H2Cl6O3 and a molecular weight of 370.828 g/mol. Key properties include a melting point of 235-239 °C(lit.), a boiling point of 466.0±45.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 200.8±27.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
115-27-5
Jingsj CID
J-36753-4
Molecular Formula
C9H2Cl6O3
Molecular Weight
370.828 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point235-239 °C(lit.)
Boiling Point466.0±45.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point200.8±27.7 °C
Exact Mass367.813507
PSA43.37000
LogP4.06
Additional Property13 (vs air)
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.651
Additional Propertyinsoluble

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H351 — Suspected of causing cancer
  • H373 — May cause damage to organs through prolonged exposure
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Chlorendic anhydride?

The CAS number of Chlorendic anhydride is 115-27-5.

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

Chlorendic anhydride has molecular formula C9H2Cl6O3 and molecular weight 370.828 g/mol.

Is Chlorendic anhydride hazardous?

Chlorendic anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Chlorendic anhydride?

For Chlorendic anhydride, Downstream Products: Maleic anhydride.

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

Last updated:

How to cite: Jingsj. "Chlorendic anhydride (CAS 115-27-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36753-4 (accessed 2026-11-06).

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