2-Bromo-4-methylbenzenamine
2-Bromo-4-methylaniline
CAS: 583-68-6
Molecular Formula: C7H8BrN
2-Bromo-4-methylbenzenamine - Names and Identifiers
| Name | 2-Bromo-4-methylaniline |
| Synonyms | 2-Bromo-p-toluid 2-bromo-p-toluidin 2-Bromo-p-toluidine 2-Bromo-4-toluidine 4-Amino-3-bromtoluol 2-Bromo-4-methylanline 3-Bromo-4-aminotoluene 4-Amino-3-bromotoluene 3-bromo-4-amino toluene 2-Bromo-4-methylaniline 2-bromo-4-methyl-benzenamin 2-Bromo-4-methylbenzenamine 4-Amino-3-bromotoluene~2-Bromo-p-toluidine |
| CAS | 583-68-6 |
| EINECS | 209-515-7 |
| InChI | InChI=1/C7H8BrN/c1-5-2-3-7(9)6(8)4-5/h2-4H,9H2,1H3 |
| InChIKey | UVRRJILIXQAAFK-UHFFFAOYSA-N |
2-Bromo-4-methylbenzenamine - Physico-chemical Properties
| Molecular Formula | C7H8BrN |
| Molar Mass | 186.05 |
| Density | 1.5 g/mL at 25 °C (lit.) |
| Melting Point | 14-16 °C (lit.) |
| Boling Point | 240 °C (lit.) |
| Flash Point | >230°F |
| Water Solubility | Insoluble in water. |
| Solubility | Chloroform (Slightly) |
| Appearance | Oil |
| Specific Gravity | 1.500 |
| Color | Dark Yellow to Dark Beige |
| BRN | 1931711 |
| pKa | 2.97±0.10(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Stability | Air Sensitive |
| Refractive Index | n20/D 1.602(lit.) |
| Physical and Chemical Properties | Colorless liquid. The melting point is 26 ℃, the boiling point is 240 ℃, the relative density is 1.500, and the refractive index is 1.6020. Miscible with alcohol and ether, insoluble in water. |
2-Bromo-4-methylbenzenamine - Risk and Safety
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R33 - Danger of cumulative effects R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 2810 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | XU4300000 |
| TSCA | Yes |
| HS Code | 29214300 |
| Hazard Note | Irritant/Toxic |
| Hazard Class | 6.1 |
| Packing Group | III |
2-Bromo-4-methylbenzenamine - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | organic synthesis intermediate. |
| production method | p-toluidine and glacial acetic acid are heated and refluxed for 2h to convert into N-acetyl-p-toluidine, cooled to 45 ℃, bromine is added dropwise, and the bromination reaction is controlled at 50-55 ℃. Inject the reactants into the sodium sulfite aqueous solution to precipitate 3-bromo-4-acetaminomoluene. Then hydrolyze with concentrated hydrochloric acid, and the obtained hydrochloride reacts with sodium hydroxide solution to obtain free 2-bromo-4-methylaniline. Yield 51-57%. |
| category | toxic substances |
| flammability hazard characteristics | open flame combustible; heated decomposition of toxic bromide gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | water, carbon dioxide, sand, foam, sand |
Last Update：2024-04-09 19:05:09
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