2,5-DIBROMOHYDROQUINONE
2,5-DIBROMOHYDROQUINONE
CAS: 14753-51-6
Molecular Formula: C6H4Br2O2
2,5-DIBROMOHYDROQUINONE - Names and Identifiers
| Name | 2,5-DIBROMOHYDROQUINONE |
| Synonyms | 2,5-Dibromoquinol 2,5-Dibromohydroquine 2,5-dibromohydroquinone 2,5-DIBROMOHYDROQUINONE 2,5-Dibromo-1,4-benzenediol 2,5-Dibromobenzene-1,4-diol 2,5-dibromobenzene-1,4-diol 1,4-Benzenediol,2,5-dibromo- |
| CAS | 14753-51-6 |
| InChI | InChI=1/C6H4Br2O2/c7-3-1-5(9)4(8)2-6(3)10/h1-2,9-10H |
2,5-DIBROMOHYDROQUINONE - Physico-chemical Properties
| Molecular Formula | C6H4Br2O2 |
| Molar Mass | 267.9 |
| Density | 2.257±0.06 g/cm3(Predicted) |
| Melting Point | 191-194 °C |
| Boling Point | 283.4±35.0 °C(Predicted) |
| Flash Point | 125.2°C |
| Solubility | Soluble in methanol |
| Vapor Presure | 0.00185mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Light yellow to Light orange |
| pKa | 7.90±0.23(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.69 |
2,5-DIBROMOHYDROQUINONE - 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. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29081990 |
2,5-DIBROMOHYDROQUINONE - Reference Information
| application | 2, 5-dibromo-1, 4-benzenediol is an important organic synthesis and pharmaceutical intermediate, widely used in synthetic medicine, pesticides, plastics and rubber additives, disinfectants and preservatives and other fine chemicals. |
| synthesis method | add benzenediol and 160 mL dichloromethane to 500 mL three-mouth bottle, cool to 0 ℃ in ice bath, slowly drop 50 mL dichloromethane solution dissolved bromine within 6 h, absorb the released hydrogen bromide gas with sodium hydroxide solution, after dropping, 10 mL of dichloromethane was used to wash the residual bromine on the inner wall of the dropping funnel, and the reaction continued to be 0. 5 h. after distillation and recovery of dichloromethane, 2, 5-dibromo-1, 4-benzenediol was obtained. |
Last Update：2024-04-10 22:29:15
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