1,3-dioxo-2-benzofuran-5-carboxylic acid (Molecular Formula: C₉H₄O₅)

Product Name:	1,3-dioxo-2-benzofuran-5-carboxylic acid
CAS Registry Number:	552-30-7
EINECS:	209-008-0
Synonyms:	552-30-7;Anhydrotrimellic acid;1,3-dioxo-2-benzofuran-5-carboxylic acid; Trimellic acid anhydride; 4-Carboxyphthalic anhydride; Anhydrotrimellitic acid; Trimellitic acid anhydride;
Molecular Structure:
Molecular Formula:	C₉H₄O₅
Molecular Weight:	192.12506
Density:	1.54
Boiling Point:	390 ºC
Melting Point:	164-169 ºC
Flash Point:	227 ºC
Refractive index:	1.662
Risk Codes:	S22;S26;S36/37/39
Safety Statements:	R37;R41;R42/43
Hazard Symbols:	Xn: Harmful;

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