Benzoic acid, 3,5-dibromo-
3,5-Dibromobenzoic acid
CAS: 618-58-6
Molecular Formula: C7H4Br2O2
Benzoic acid, 3,5-dibromo- - Names and Identifiers
| Name | 3,5-Dibromobenzoic acid |
| Synonyms | BRN 1940691 RARECHEM AL BO 0773 3,5-dibromobenzoate 3,5-dibromo-benzoicaci 3,5-DIBROMOBENZOIC ACID 3,5-Dibromobenzoic acid Benzoic acid, 3,5-dibromo- 4-09-00-01028 (Beilstein Handbook Reference) |
| CAS | 618-58-6 |
| InChI | InChI=1/C7H4Br2O2/c8-5-1-4(7(10)11)2-6(9)3-5/h1-3H,(H,10,11)/p-1 |
Benzoic acid, 3,5-dibromo- - Physico-chemical Properties
| Molecular Formula | C7H4Br2O2 |
| Molar Mass | 279.91 |
| Density | 1.9661 (rough estimate) |
| Melting Point | 218-220 °C (lit.) |
| Boling Point | 355.2±32.0 °C(Predicted) |
| Flash Point | 168.6°C |
| Solubility | Very faint turbidity in methanol. |
| Vapor Presure | 1.17E-05mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Light yellow |
| BRN | 1940691 |
| pKa | 3.42±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4970 (estimate) |
| MDL | MFCD00051758 |
| Physical and Chemical Properties | White needle-like or plate-like crystals. Melting point 219-220 °c (sublimation). Soluble in alcohol and acetic acid, insoluble in cold water and cold benzene. |
Benzoic acid, 3,5-dibromo- - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | DG6290010 |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
Benzoic acid, 3,5-dibromo- - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| production method | from anthranilic acid by bromination, diazotization and other reactions. The bromination reaction is carried out at about 20 ° C. After the reaction, the crystals are filtered, washed with hot water to remove anthranilic acid and hydrochloric acid, and recrystallized with acetic acid to obtain O-amino -3, 5-dibromobenzoic acid; then diazotization was carried out in hydrochloric acid at about 0 ℃ with sodium nitrite, and then the diazonium salt was added in portions to ethanol containing calcium sulfate at 60-70 ℃, and then stirred for 10min to filter the crude product, the final product was obtained by recrystallization from ethanol. |
Last Update：2024-04-09 15:16:51
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