3,4-Dihydroxybenzoic acid 99-50-3 CAS NO.99-50-3

Product Name:    Protocatechuic acid
Synonyms:    Protocatechuic aci;Protocatechuic acid, 4-Carboxybenzene-1,2-diol, 4-Carboxycatechol;3,4- twohydroxybenzoic acid/protocatechuicacid;3,4-Dihydroxybenzoic acid >=97.0% (T);Carbohydroquinonic acid;Hypogallic acid;3,4-Dihydroxybenzoic acid Vetec(TM) reagent grade, 97%;3,4-Dihydroxybenzoic acid, >=99%
CAS:    99-50-3
MF:    C7H6O4
MW:    154.12
EINECS:    202-760-0
Product Categories:    chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract;Aromatics, Metabolites & Impurities, Pharmaceuticals, Intermediates & Fine Chemicals;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;BenzoicAcidDerivative;Organic acids;API;sy;Allium cepa (Onion);Building Blocks;Inhibitors;C7;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Curcuma longa (Turmeric);Ginkgo biloba;Nutrition Research;Organic Building Blocks;Phytochemicals by Plant (Food/Spice/Herb);Vaccinium myrtillus (Bilberry)
Mol File:    99-50-3.mol

Melting point     197-200 °C (dec.) (lit.)
Boiling point     237.46°C (rough estimate)
density     1.54
FEMA     4430 | 3,4-DIHYDROXYBENZOIC ACID
refractive index     1.6400 (estimate)
storage temp.     Store below +30°C.
solubility     20g/l
pka    4.48(at 25℃)
form     Fine Crystalline Powder
color     Beige to brown
Water Solubility     Soluble in hot alcohol and ether. Slightly soluble in water.
Sensitive     Air Sensitive
Merck     14,7894
BRN     1448841
Stability:    Stable. Incompatible with strong oxidizing agents, strong bases.
InChIKey    YQUVCSBJEUQKSH-UHFFFAOYSA-N
CAS DataBase Reference    99-50-3(CAS DataBase Reference)
EPA Substance Registry System    Protocatechuic acid (99-50-3)