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CAS No 99-50-3 , 3,4-dihydroxybenzoic acid Search by region : China

  • Name: 3,4-dihydroxybenzoic acid
  • Synonyms: 99-50-3; protocatechuate; Benzoic acid; Protocatehuic acid;3,4-DIHYDROXYBENZOIC ACID; 4-Carboxy-1,2-dihydroxybenzene;3,4-dihydroxybenzoic acid; 3,4-dihydroxy-;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 198-202 ºC
  • Flash Point: 410.7 ºC at 760 mmHg
  • Boiling Point: 410.7 ºC at 760 mmHg
  • Density: 1.559 g/cm3
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29182990
  • Flash Point: 410.7 ºC at 760 mmHg
  • EINECS: 202-760-0
  • Molecular Weight: 154.12014
  • InchiKey: YQUVCSBJEUQKSH-UHFFFAOYSA-N
  • InChI: InChI=1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)
  • Risk Statements: S26;S37/39
  • Molecular Formula: C7H6O4
  • Molecular Structure:CAS No:99-50-3 3,4-dihydroxybenzoic acid

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  • 3,4-Dihydroxybenzoic acid CAS No.:99-50-3 Appearance:off-white crystalline powder Purity:≥99% (HPLC)
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References of 3,4-dihydroxybenzoic acid
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. H?rhammer, 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