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3,4-Dihydroxybenzoic acid

analytical standard

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Synonym(s):
Protocatechuic acid
Linear Formula:
(HO)2C6H3CO2H
CAS Number:
99-50-3
Molecular Weight:
154.12
Beilstein:
1448841
EC Number:
202-760-0
MDL number:
MFCD00002509
PubChem Substance ID:
329748656
NACRES:
NA.24

grade

analytical standard

Quality Level

100

Assay

≥97.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

197-200 °C (dec.) (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

format

neat

SMILES string

OC(=O)c1ccc(O)c(O)c1

InChI

1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)

InChI key

YQUVCSBJEUQKSH-UHFFFAOYSA-N

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General description

3,4-Dihydroxybenzoic acid is a catabolite of epinephrine. It is a phenolic compound and an important constituent of lignin present in wine, green and black tea, and herbal medicines, which exhibits anti-inflammatory and antitumor promotion. 3,4-Dihydroxybenzoic acid is also a model matrix for ionization of peptides, proteins and carbohydrates in the MALDI (matrix-assisted laser desorption ionization mass spectroscopy) technique.

Application

3,4-Dihydroxybenzoic acid may be used as a reference standard for the determination of:
  • Phenols in biomass pre-treatment hydrolysates by high-performance liquid chromatography method.
  • 3,4-Dihydroxybenzoic acid in wine by high-performance liquid chromatography with a microbore column.

Biochem/physiol Actions

Chemopreventive in several animal models of carcinogenesis. Blocks cell proliferation in the post-initiation phase.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Recommended products

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H319 - H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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High-performance liquid chromatography method for simultaneous determination of aliphatic acid, aromatic acid and neutral degradation products in biomass pretreatment hydrolysates.
Chen SF, et al.
Journal of Chromatography A, 1104(1-2), 54-61 (2006)
Phytochemical Characterization of Rhus coriaria L. Extracts by Headspace Solid-Phase Micro Extraction Gas Chromatography, Comprehensive Two-Dimensional Liquid Chromatography, and Antioxidant Activity Evaluation
Arena K, et al.
Molecules (Basel), 27(5), 1727-1727 (2022)
3, 4-Dihydroxybenzoic acid from Smilacis chinae rhizome protects amyloid $\beta$ protein (25-35)-induced neurotoxicity in cultured rat cortical neurons.
Ban JY, et al.
Neuroscience Letters, 420(2), 184-188 (2007)
Determination of phenolic acids in wine by high-performance liquid chromatography with a microbore column.
Buiarelli F, et al.
Journal of Chromatography A, 695(2), 229-235 (1995)
Thermochemical study of 2, 4-, 2, 6-and 3, 4-dihydroxybenzoic acids in the liquid phase using a TG apparatus.
Vecchio S and Brunetti B
Thermochimica Acta, 515(1), 84-90 (2011)
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