C8Br4O3
463.7 g/mol
Industrial ChemicalWarning
Tetrabromophthalic anhydride
CAS632-79-1EC211-185-4
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
reactive flame retardant
Tetrabromophthalic anhydride is an industrial chemical primarily used as a reactive flame retardant. It is a brominated aromatic compound containing anhydride and ester functional groups, commonly incorporated into polymers to reduce flammability.
reactive flame retardant in polymersintermediate in the synthesis of flame-retardant materials
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
ApplicationSame Use
Pentaerythritol dibromide
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reactive flame retardant
ReferenceSame Category
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ReferenceSame Category
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ReferenceSame Category
2,3-Dichlorobenzaldehyde
CAS6334-18-5
chemical intermediate for synthesis
Referencesame scaffold
(²H₄)-2-Benzofuran-1,3-dione
CAS75935-32-9
research compound
Referencesame scaffold
4-Bromophthalic anhydride
CAS86-90-8
pharmaceutical intermediate
Referencesame scaffold
3-Acetamidophthalic anhydride
CAS6296-53-3
pharmaceutical intermediate
Safety Reference
Warning
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for Tetrabromophthalic anhydride (CAS 632-79-1) is 2917.39.
HS code (international, 6-digit)
2917.39
EU CN code (8-digit)
2917 39 20
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
4,5,6,7-tetrabromo-2-benzofuran-1,3-dione
InChIKey
QHWKHLYUUZGSCW-UHFFFAOYSA-N
SMILES
C12=C(C(=C(C(=C1Br)Br)Br)Br)C(=O)OC2=O
Synonyms (27)
- T-1943
- 1, 4,5,6,7-tetrabromo-
- Bromophthal
- Bromphthal
- Dion 6692
- Dion 6692 (VAN)
- FG 400
- FG 4000
- FireMaster PHT 4
- Great lakes PHT4
- PHT 4
- SAYTEX RB-49, FireMaster PHT4
- Saytex RB 49
- Tetrabromophthalic anhydride
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