C9H3ClO4
210.57 g/mol
Pharmaceutical IntermediateDanger
Trimellitic anhydride chloride
CAS1204-28-0EC214-874-8
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
Trimellitic anhydride chloride is a chemical compound used as a pharmaceutical intermediate. It features a fused ring system with carbonyl chloride and anhydride functionalities, making it useful in organic synthesis and pharmaceutical manufacturing.
Pharmaceutical intermediateBuilding block for organic synthesis
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
2'-Chloro[1,1'-biphenyl]-4-amine--hydrogen chloride (1/1)
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ReferenceSame Category
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pharmaceutical intermediate
ReferenceSame Category
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pharmaceutical intermediate
Referencesame scaffold
Trimellitic anhydride
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4-chlorophthalic anhydride
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3-Iodophthalic anhydride
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research compound
Referencesame scaffold
4-nitrophthalic acid anhydride
CAS5466-84-2
pharmaceutical intermediate
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
Customs Tariff Classification
The international HS code for Trimellitic anhydride chloride (CAS 1204-28-0) is 2917.39.
HS code (international, 6-digit)
2917.39
EU CN code (8-digit)
2917 39 85
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
1,3-dioxo-2-benzofuran-5-carbonyl chloride
InChIKey
NJMOHBDCGXJLNJ-UHFFFAOYSA-N
SMILES
C1=CC2=C(C=C1C(=O)Cl)C(=O)OC2=O
Synonyms (29)
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