303-38-8
2,3-Dihydroxybenzoic acid
CAS: 303-38-8
Molecular Formula: C7H6O4
303-38-8 - Names and Identifiers
303-38-8 - Physico-chemical Properties
| Molecular Formula | C7H6O4 |
| Molar Mass | 154.12 |
| Density | 1,542 g/cm3 |
| Melting Point | 204-206 °C (lit.) |
| Boling Point | 95-96/0.5mm |
| Flash Point | 187.2°C |
| Water Solubility | Soluble in water, methanol and dimethyl sulfoxide. |
| Solubility | methanol: soluble 50 mg/mL |
| Vapor Presure | 6.85E-06mmHg at 25°C |
| Appearance | Beige to brown or pinkish-gray(Crystalline Powder) |
| Color | Beige to brown or pinkish-gray |
| BRN | 2209117 |
| pKa | pK1:2.98;pK2:10.14 (30°C) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.6400 (estimate) |
| MDL | MFCD00002446 |
| Physical and Chemical Properties | Melting Point: 204-208°C |
| Use | Used as a pharmaceutical Intermediate |
| In vitro study | Pyrocatechuic acid (2,3-Dihydroxybenzoic acid) is a normal human benzoic acid metabolite found in plasma, and has increased levels after aspirin ingestion. |
303-38-8 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 2 |
| RTECS | DG8576490 |
| HS Code | 29182900 |
| Hazard Note | Irritant |
303-38-8 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Biological activity | 2, 3-Dihydroxybenzic acid (Pyrocatechuic acid, 3-Hydroxybenzic acid, Hypogallic acid) is a natural Phenols exist in the Salvinia molesta of West Indian gooseberries and aquatic ferns, and are also metabolites of aspirin in the human body. It is a potential iron chelating drug with antibacterial properties. |
| Use | Used as a pharmaceutical intermediate and chelating agent |
Last Update：2024-04-09 15:16:49
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View History
303-38-8
((4-(tert-Butyl)phenyl)sulfonyl)leucine
N-(3-chloro-2-methylphenyl)-5-(4-ethoxyphenyl)-7-methylpyrazolo[1,5-a]pyrimidine-2-carboxamide
BLEOMYCIN SULFATE FROM STREPTOMYCES VERT ICILLUS, LYOPH.
2-(2-pyrimidinyl)-5-thiazolecarboxylic acid
Carbamic acid
8-(benzylamino)-7-[2-hydroxy-3-(propan-2-yloxy)propyl]-3-methyl-3,7-dihydro-1H-purine-2,6-dione
Methyl 2-(methylsulfonyl)nicotinate
3-(Ethoxycarbonyl)-6,7,8,9-tetrahydro-1,6-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-1-ium
1-Naphthalenesulfonamide, N-butyl-5-(dimethylamino)-
((4-(tert-Butyl)phenyl)sulfonyl)leucine
N-(3-chloro-2-methylphenyl)-5-(4-ethoxyphenyl)-7-methylpyrazolo[1,5-a]pyrimidine-2-carboxamide
BLEOMYCIN SULFATE FROM STREPTOMYCES VERT ICILLUS, LYOPH.
2-(2-pyrimidinyl)-5-thiazolecarboxylic acid
Carbamic acid
8-(benzylamino)-7-[2-hydroxy-3-(propan-2-yloxy)propyl]-3-methyl-3,7-dihydro-1H-purine-2,6-dione
Methyl 2-(methylsulfonyl)nicotinate
3-(Ethoxycarbonyl)-6,7,8,9-tetrahydro-1,6-dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-1-ium
1-Naphthalenesulfonamide, N-butyl-5-(dimethylamino)-