4-Oxo-4H-1-benzopyran-2-carboxylic acid

About This Item

Molecular Formula	C₁₀H₆O₄
CAS Number	4940-39-0

FC-0545254

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Properties

Chemical Identifiers

IUPAC Name	4-oxochromene-2-carboxylic acid
SMILES	C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O
InChI Key	RVMGXWBCQGAWBR-UHFFFAOYSA-M
InChI	InChI=1S/C10H6O4/c11-7-5-9(10(12)13)14-8-4-2-1-3-6(7)8/h1-5H,(H,12,13)/p-1

Physical Properties

Boiling Point	337.0±42.0 °C at 760 mmHg
Melting Point	260 °C (dec.)(lit.)
Flash Point	138.9±21.4 °C
Density	1.5±0.1 g/cm3

Safety Information

Hazard Class

Warning

Flash Point

138.9±21.4 °C

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.