Gentisic Acid Properties, Molecular Formula, Applications - WorldOfChemicals

Gentisic Acid Properties

Gentisic Acid

Molecule Structure Image



Gentisic acid is a dihydroxybenzoic acid. It is a derivative of benzoic acid and a minor product of the metabolic break down of aspirin, excreted by the kidneys. As a hydroquinone, gentisic acid is readily oxidised and is used as an antioxidant excipient in some pharmaceutical preparations. In the laboratory, it is used as a sample matrix in matrix-assisted laser desorption/ionization mass spectrometry.

Chemical Properties

Appearance White to yellow powder
CAS Number 490-79-9
Density 1.559 g/cm3
EINECS Number 207-718-5
HS Code 29182990
IUPAC Name 2,5-Dihydroxybenzoic acid
InChI 1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)
Melting Point 200 - 205 °C
Molar Mass 154.12 g/mol
Molecular Formula C7H6O4
RTECS Number LY3850000
Solubility Soluble
Synonyms DHB;2,5-Dihydroxybenzoic Acid;5-Hydroxysalicylic Acid;Gentianic Acid;Carboxyhydroquinone;2,5-Dioxybenzoic Acid;Hydroquinonecarboxylic Acid