4-Bromophenol
P-Bromophenol
CAS: 106-41-2
Molecular Formula: C6H5BrO
4-Bromophenol - Names and Identifiers
| Name | P-Bromophenol |
| Synonyms | 4-bromo-pheno P-Bromophenol p-bromo-pheno 4-BROMOPHENOL P-BROMOPHENOL BROMOPHENOL-4 4-Bromophenol 4-Bromophbenol 1,4-bromophenol Phenol,4-bromo- 4-Bromophenoles Phenol, p-bromo- Phenol, 4-bromo- AKOS BBS-00004402 p-bromophenicacid 4-BROMOHYDROXYBENZENE p-bromohydroxybenzene 4-Bromophenol p-Bromophenol |
| CAS | 106-41-2 |
| EINECS | 203-394-4 |
| InChI | InChI=1/C6H5BrO/c7-5-1-3-6(8)4-2-5/h1-4,8H |
4-Bromophenol - Physico-chemical Properties
| Molecular Formula | C6H5BrO |
| Molar Mass | 173.01 |
| Density | 1.84 |
| Melting Point | 61-64 °C (lit.) |
| Boling Point | 235-236 °C (lit.) |
| Flash Point | 235-238°C |
| Water Solubility | It is insoluble in water. It is soluble in 5%ethanol. |
| Solubility | 14g/l |
| Vapor Presure | 0.0282mmHg at 25°C |
| Appearance | Crystalline Solid |
| Color | Pinkish-brown |
| Maximum wavelength(λmax) | ['282nm(EtOH)(lit.)'] |
| Merck | 14,1428 |
| BRN | 1680024 |
| pKa | 9.37(at 25℃) |
| Storage Condition | room temp |
| Refractive Index | 1.5085 (estimate) |
| Physical and Chemical Properties | Density 1.84 melting point 64-68°C boiling point 235-236°C |
| Use | Used as pharmaceutical, pesticide, flame retardant intermediates |
4-Bromophenol - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, 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 - Wear suitable protective clothing. |
| UN IDs | 2811 |
| WGK Germany | 2 |
| RTECS | SJ7960000 |
| FLUKA BRAND F CODES | 8-10-23 |
| TSCA | Yes |
| HS Code | 29081000 |
| Hazard Note | Irritant |
| Hazard Class | 6.1(b) |
| Packing Group | III |
4-Bromophenol - Upstream Downstream Industry
| Downstream Products | Tamoxifen citrate |
4-Bromophenol - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | 4-bromophenol is a bromine-containing compound. Bromine-containing compounds are widely used and play an important role in the production of medicines, dyes, pesticides, spices, pigments, plasticizers and flame retardants. For example, in the pharmaceutical industry, bromine-containing compounds are used in the manufacture of various sedatives and disinfectants, and are also intermediates in the manufacture of antibacterial drugs. 4-bromophenol is a phenolic derivative, which can be used in the pharmaceutical industry and organic synthesis, and also used as an insecticide. |
| Use | 4-bromophenol was used as the Stille reaction reagent. used in organic synthesis, medicine, pesticide intermediates. used as pharmaceutical, pesticide, flame retardant intermediates used in pharmaceutical industry and organic synthesis, also used as pesticides used in organic synthesis and pharmaceutical industry, also used as insecticide |
| preparation | in a three-necked flask, add phenol (4.33g,0.046mmol), TBAB(7.45g,0.023mmol) KBr(8.26g,0.069mmol), 1, 2-dichloroethane (20ml), stirred at 40 °c, triphosgene (17.80g,0.060mmol) of 1 was added to the reaction solution, 2-dichloroethane (40ml) solution, after completion of the reaction, the reaction solution was washed with water, and 7.40g of the product was obtained after evaporation, the yield was 93%, and the HPLC purity was 99%. |
| production method | is obtained by bromination of phenol. The bromine and carbon disulfide solution were added to the phenol carbon disulfide solution, and the addition was started at 5 ° C. Or lower, and the addition was completed under stirring for 2 hours. Phenol and bromine are close to equimolar ingredients. The carbon disulfide was distilled off from the reactant and fractionated under reduced pressure, and the product was obtained by collecting a fraction of 145-150 ° C. (3.32-3.99kPa). Yield 80-84%. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | oral-mouse LD50: 523 mg/kg; Intraperitoneal-mouse LD50: 411 mg/kg |
| flammability hazard characteristics | flammable in open flame; Toxic bromide smoke from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food additives |
| extinguishing agent | carbon dioxide, foam, sand, water mist. |
| Occupational Standard | SEL 0.3 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:52:54
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Downstream Products for 4-Bromophenol