2-Bromo-4-methylphenol
2-Bromo-4-methylphenol
CAS: 6627-55-0
Molecular Formula: C7H7BrO
2-Bromo-4-methylphenol - Names and Identifiers
| Name | 2-Bromo-4-methylphenol |
| Synonyms | 2-bromo-p-creso 2-BROMO-P-CRESOL 2-Bromo-p-cresol 2-BROMO-4-METHYLPHENOL 2-Bromo-4-methylphenol 3-Bromo-4-hydroxytoluene 3-Bromo-4-Hydroxytoluene 3-BROMO-4-HYDROXY-BENZYLIC ALCOHOL 2-Bromo-p-cresol, 3-Bromo-4-hydroxytoluene 2-Bromo-4-methylphenoll)ethyl]-1H-imidazole monohydrochloride |
| CAS | 6627-55-0 |
| EINECS | 229-595-7 |
| InChI | InChI=1/C7H7BrO/c1-5-2-3-7(9)6(8)4-5/h2-4,9H,1H3 |
2-Bromo-4-methylphenol - Physico-chemical Properties
| Molecular Formula | C7H7BrO |
| Molar Mass | 187.03 |
| Density | 1.554±0.06 g/cm3 | Condition: Temp: 20 °C Press: 760 Torr |
| Melting Point | 54-55 °C |
| Boling Point | 245-247 °C |
| Flash Point | >230°F |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 0.112mmHg at 25°C |
| pKa | 8.73±0.18(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Sensitive to air |
| Refractive Index | n20/D 1.578(lit.) |
| MDL | MFCD00002151 |
| Physical and Chemical Properties | Feather needle-like body crystals. Melting point 56-57 ℃, boiling point 213-214 ℃,102-104 ℃(2.67kPa), relative density 1.547(57/4 ℃), refractive index 1.5785. Soluble in ether. |
2-Bromo-4-methylphenol - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R21/22 - Harmful in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | GO6868200 |
| TSCA | Yes |
| HS Code | 29071990 |
| Hazard Class | IRRITANT |
2-Bromo-4-methylphenol - Reference Information
| Chemical properties | Feather needle-like body crystals. Melting point 56-57 ℃, boiling point 213-214 ℃,102-104 ℃(2.67kPa), relative density 1.547(57/4 ℃), refractive index 1.5785. Soluble in ether. |
| use | organic synthesis intermediate. |
| Production method | is obtained by diazotization and hydrolysis of 2-bromo-4-methylaniline. Add dilute sulfuric acid to 2-bromo-4-methylaniline, stir and cool, add sodium nitrite aqueous solution below 5°C, keep the temperature below 5°C, and then add cold water, urea and crushed ice to obtain diazonium salt solution. Then anhydrous sodium sulfate, concentrated sulfuric acid and water are heated, diazonium salt solution is added in batches at 130-135 ℃, and then water is added in batches for distillation. The resulting distillate is extracted with ether, washed with 10% sodium bicarbonate solution, and then dried by anhydrous sodium sulfate, filtered, and the filtrate is evaporated to ether to obtain the finished product. Another method is direct bromination of p-cresol in chloroform solvent. |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 20:48:19
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