C9H2Cl6O3
370.8 g/mol
Industrial ChemicalWarning
CHLORENDIC ANHYDRIDE
CAS115-27-5EC204-077-3
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
Flame retardant and epoxy resin hardener
Chlorendic anhydride is a chlorinated bicyclic compound used primarily as a flame retardant in unsaturated polyester resins and as a hardener for epoxy resins. Its highly chlorinated structure contributes to its flame-retardant properties in polymers, coatings, and building materials.
Hardener for epoxy resinsFlame retardant in unsaturated polyester resinsChemical intermediate for chlorendic acid
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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flame retardant and plasticizer
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Flame retardant plasticizer and viscosity regulator
ReferenceSame Category
Potassium (2,2-dimethylpropyl)(trifluoro)borate(1-)
CAS1150655-02-9
Organic synthesis reagent
Referencesame scaffold
Methyl-5-norbornene-2,3-dicarboxylic anhydride
CAS25134-21-8
Curing agent for epoxy resins
Referencesame scaffold
Nadic anhydride
CAS826-62-0
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H317May cause an allergic skin reaction
H351Suspected of causing cancer
H373May cause damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for CHLORENDIC ANHYDRIDE (CAS 115-27-5) is 2917.20.
HS code (international, 6-digit)
2917.20
EU CN code (8-digit)
2917 20 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,7,8,9,10,10-hexachloro-4-oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
InChIKey
FLBJFXNAEMSXGL-UHFFFAOYSA-N
SMILES
C12C(C(=O)OC1=O)C3(C(=C(C2(C3(Cl)Cl)Cl)Cl)Cl)Cl
Synonyms (32)
- CHLORENDIC ANHYDRIDE
- Chloran 542
- Chlorendic anhydride (VAN)
- HET anhydride
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