Chlorendic anhydride

Description

Chlorendic anhydride · CAS 115-27-5 · C9H2Cl6O3. Melting Point: 239 °C; Melting Point: 231-235 °C; Density: 1.73 kg/L.

Identification

CAS Registry Number	115-27-5
PubChem CID	8265
Molecular formula	C9H2Cl6O3
IUPAC name	1,7,8,9,10,10-hexachloro-4-oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione

Computed Descriptors

Molecular Weight	370.8
XLogP3	2.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	369.810560
Monoisotopic Mass	367.813510
Topological Polar Surface Area	43.4
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Melting Point	239 °C
Melting Point	231-235 °C
Density	1.73 kg/L
Density	1.73 g/cm³
Vapor Pressure	5.5X10-7 mm Hg @ 25 °C /Estimated/

Physical description & handling notes

• Dry Powder
• White crystals; [Hawley]
• WHITE CRYSTALS.
• Fine white crystals
• Readily sol in acetone, benzene, toluene; slightly sol in water, n-hexane, carbon tetrachloride
• In water, 0.086 mg/L @ 25 °C /Estimated/

Regulatory Status

GHS notification summary	0.6% (1 / 155)

GHS Hazard Classification

GHS notification summary	0.6% (1 / 155)
Reported hazard statements	H315, H319, H335, H317 (40.6%), H351 (29%), H373 (65.2%), H412 (65.2%)

Documented Uses

• Used as a hardener in epoxy resins and a flame retardant in polyester resins; Used in the production of chlorendic acid and polymers for coatings and building materials; [HSDB]
• Plastic Composites Manufacturing [Category: Industry]
• FLAME RETARDANT IN UNSATURATED POLYESTER RESINS; CHEM INT FOR CHLORENDIC ACID; HARDENER FOR EPOXY RESINS
• ... Polymers for building materials, paints, and other coatings.
• DIELS-ALDER REACTION OF HEXACHLOROCYCLOPENTADIENE WITH MALEIC ANHYDRIDE
• The starting material is the fully chlorinated dicyclopentadiene cracked to monomeric hexachlorocyclopentadiene, which is then converted via Diels-Alder reaction with maleic anhydride to a reactive bicyclic anhydride, known as chlorendic anhydride.

Synonyms

CHLORENDIC ANHYDRIDE; 115-27-5; HET anhydride; 1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboxylic anhydride; Chloran 542; 4,5,6,7,8,8-Hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione; Chlorendic anhydride (VAN); NSC 22229; DTXSID2026941; HSDB 2920; Hexachloro-5-norbornene-2,3-dicarboxylic anhydride; Hexachloroendomethylene tetrahydrophthalic anhydride; EINECS 204-077-3; 4,7-Methanoisobenzofuran-1,3-dione, 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-; BRN 0092693; 5-Norbornene-2,3-dicarboxylic anhydride, 1,4,5,6,7,7-hexachloro-

Frequently Asked Questions

What are the CAS number and molecular formula of Chlorendic anhydride?

CAS 115-27-5; molecular formula C9H2Cl6O3; molecular weight — g/mol.

What other names is Chlorendic anhydride known by?

CHLORENDIC ANHYDRIDE, 115-27-5, HET anhydride, 1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboxylic anhydride, Chloran 542, 4,5,6,7,8,8-Hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione.

Is Chlorendic anhydride classified as hazardous?

0.6% of GHS notifications report no hazard classification (1 of 155).

What are the key physical properties of Chlorendic anhydride?

Melting Point: 239 °C; Melting Point: 231-235 °C; Density: 1.73 kg/L; Density: 1.73 g/cm³.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.