Protocatechuic Acid
Structural Formula Vector Image
Title: Protocatechuic Acid
CAS Registry Number: 99-50-3
CAS Name: 3,4-Dihydroxybenzoic acid
Molecular Formula: C7H6O4
Molecular Weight: 154.12
Percent Composition: C 54.55%, H 3.92%, O 41.52%
Literature References: Minute amounts are found in wheat grains, in wheat seedlings, and in many other plants: L. Hörhammer, A. Scherm, Arch. Pharm. 288, 441 (1955). Prepd by the alkaline fusion of vanillin: Tiemann, Haarmann, Ber. 7, 617 (1874); Pearl, J. Am. Chem. Soc. 68, 2180 (1946); Org. Synth. coll. vol. III, 745 (1955).
Properties: White to brownish, cryst powder; discolors in air. d 1.54. mp ~200° with decompn. Sol in 50 parts water; sol in alcohol, ether. Keep well closed.
Melting point: mp ~200° with decompn
Density: d 1.54

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