3-Hydroxybenzoic Acid CAS No. 99-06-9
Pharmaceutical Materials 2025-03-20
Names and Identifiers
| Name | 3-Hydroxybenzoic acid |
| Synonyms | m-Hba NSC 55746 AI3-03110 BRN 0508160 m-salicylicacid 3-Carboxyphenol m-Salicylic acid EINECS 202-726-5 3-hydroxybenzoate m-hydroxy-benzoicaci 3-Hydroxybenzoic Acid m-Hydroxybenzoic acid 3-Hydroxybenzoic acid Acido m-idrossibenzoico Benzoic acid, 3-hydroxy- Benzoic acid, m-hydroxy- meta-Hydroxybenzoic acid kyselina3-hydroxybenzoova Kyselina 3-hydroxybenzoova Acido m-idrossibenzoico [Italian] Kyselina 3-hydroxybenzoova [Czech] m-HydroxybenzoicacidM-HydroxybenzoicAcid m-Hydroxybenzoic Acid 3-Hydroxybenzoic Acid 4-27-00-07537 (Beilstein Handbook Reference) |
| CAS | 99-06-9 |
| EINECS | 202-726-5 |
| InChI | InChI=1/C7H6O3/c8-6-3-1-2-5(4-6)7(9)10/h1-4,8H,(H,9,10)/p-1 |
| InChIKey | IJFXRHURBJZNAO-UHFFFAOYSA-N |
Physico-chemical Properties
| Molecular Formula | C7H6O3 |
| Molar Mass | 138.12 |
| Density | 1.4850 |
| Melting Point | 200-203 °C (lit.) |
| Boling Point | 213.5°C (rough estimate) |
| Flash Point | 220 °C |
| Water Solubility | slightly soluble |
| Solubility | Soluble in hot water, soluble in ethanol and ether, slightly soluble in cold water, insoluble in benzene. |
| Vapor Presure | 2.24E-05mmHg at 25°C |
| Appearance | White crystal |
| Color | White to off-white |
| BRN | 508160 |
| pKa | 4.06(at 19℃) |
| PH | 3 (H2O)Aqueous solution |
| Sensitive | Sensitive to light |
| Refractive Index | 1.4600 (estimate) |
| MDL | MFCD00002506 |
| Physical and Chemical Properties | Appearance colorless crystals solubility slightly soluble in water and benzene, soluble in ethanol and n-butanol |
| Use | Used in the preparation of herbicides, fungicides, preservatives, ion exchangers, plasticizers and pharmaceutical intermediates, can also be used to synthesize azo dyes |
| Caution | Corrosive, pay attention to protection. Splash onto the skin and rinse with plenty of soapy water. |
Risk and Safety
| Risk Codes | R22 – Harmful if swallowed R36/37/38 – 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 | 3 |
| RTECS | DH1924980 |
| TSCA | Yes |
| HS Code | 29182990 |
| Hazard Note | Irritant |
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