| Product Information | |
|---|---|
| CAS number | 99-96-7 |
| EC number | 202-804-9 |
| Hill Formula | C₇H₆O₃ |
| Chemical formula | 4-(OH)C₆H₄COOH |
| Molar Mass | 138.12 g/mol |
| HS Code | 2918 29 00 |
| Structure formula Image | |
| Applications | |
|---|---|
| Application | 4-Hydroxybenzoic acid for synthesis. CAS 99-96-7, chemical formula 4-(OH)C₆H₄COOH. |
| Physicochemical Information | |
|---|---|
| Ignition temperature | >250 °C |
| Melting Point | 213 - 216 °C |
| pH value | 3.3 (1 g/l, H₂O, 20 °C) |
| Bulk density | 600 kg/m3 |
| Solubility | 5 g/l |
| Toxicological Information | |
|---|---|
| LD 50 oral | LD50 Rat > 5000 mg/kg |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |  |
| Hazard Statement(s) | H319: Causes serious eye irritation. |
| Precautionary Statement(s) | P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 4 Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). |
| Safety Information | |
|---|---|
| Hazard Symbols |  Irritant |
| Categories of danger | irritant |
| R Phrase | R 36 Irritating to eyes. |
| Storage and Shipping Information | |
|---|---|
| Storage | Store below +30°C. |
| Specifications | |
|---|---|
| Assay (HPLC, area%) | ≥ 98.0 % (a/a) |
| Melting range (lower value) | ≥ 214 °C |
| Melting range (upper value) | ≤ 217 °C |
| Identity (IR) | passes test |