Trimellitic Anhydride TCI C0959

Chemical Identity

Other names: 4-Carboxyphthalic Anhydride
CAS No.: 552-30-7
PubChem: CID 11089·SID 87566005
Formula: C9H4O5
Molecular weight: 192.13 g/mol
Purity: >98.0%(T)
Reference databases: ChEBI·ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 1,3-dioxo-2-benzofuran-5-carboxylic acid
SMILES: C1=CC2=C(C=C1C(=O)O)C(=O)OC2=O
InChIKey: SRPWOOOHEPICQU-UHFFFAOYSA-N
MDL: MDL00005925

Rp 505.050,00

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TCI C0959 Trimellitic Anhydride (CAS 552-30-7) is the cyclic anhydride of benzene-1,2,4-tricarboxylic acid, carrying an additional free carboxyl group on the aromatic ring. This trifunctional character makes it a key monomer for polyamide-imides, polyimides, water-reducible resins, and trifunctional ester derivatives. The reactive anhydride ring readily forms imide and ester linkages, while the free acid group enables crosslinking and further modification. Supplied in 25 g and 500 g packs, it is moisture sensitive and a known respiratory sensitizer, so it must be handled in a fume hood with dust control and stored tightly sealed in a dry place.

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Unemori (2003). Water absorption of poly(methyl methacrylate) containing 4-methacryloxyethyl trimellitic anhydride. Biomaterials doi:10.1016/s0142-9612(02)00521-5
(1991). Trimellitic Anhydride. Applied Occupational and Environmental Hygiene doi:10.1080/1047322x.1991.10387947
(2006). Trimellitic anhydride capacity is surplus in China. Focus on Powder Coatings doi:10.1016/s1364-5439(06)70510-x

References were compiled automatically from Crossref and every DOI was verified to exist. AMI Scientific is not affiliated with the authors or the publishers.