Name | 1-Bromo-2-naphthol |
Synonyms | wormin disthemin Bromonaphthol 1-brom-2-naphthol 1-Bromo-2-naphthol 1-Bromo-b-naphthol 1-Bromo-2-naphtalenol 1-bromonaphthalen-2-ol 1-Bromonaphthalene-2-ol 2-Naphthalenol, 1-bromo- 1-BROMO-2-HYDROXYNAPHTHALENE |
CAS | 573-97-7 |
EINECS | 209-363-1 |
InChI | InChI=1/C10H7BrO/c11-10-8-4-2-1-3-7(8)5-6-9(10)12/h1-6,12H |
Molecular Formula | C10H7BrO |
Molar Mass | 223.07 |
Density | 1.4412 (rough estimate) |
Melting Point | 78-81 °C (lit.) |
Boling Point | 130°C |
Flash Point | 143.5°C |
Vapor Presure | 0.000264mmHg at 25°C |
Appearance | Crystal |
Color | Off-white to beige or brown-purple |
BRN | 2044001 |
pKa | 7.28±0.50(Predicted) |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | 1.5700 (estimate) |
MDL | MFCD00003869 |
Physical and Chemical Properties | Needle-like crystals. Melting point 84 degrees C, 130 degrees C decomposition. Soluble in alcohol, ether, benzene and acetic acid. |
Use | Dye intermediates; for organic synthesis. This product is also an intestinal insect repellent, used for hookworm infection. |
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 | QL3361000 |
HS Code | 29081000 |
Hazard Class | IRRITANT |
Use | dye intermediate; Used in organic synthesis. This product is also an intestinal insect repellent, used for hookworm infection. |
production method | is obtained by bromination of 2-naphthol. Ethanol was added to the reaction pan, and 2-naphthol was added, dissolved by stirring, cooled to 15 ° C. And added with bromine. The temperature was maintained at about 15 ° C., and the mixture was added within 2-3H and stirred for 10min. At the same time, sulfur dioxide was saturated. The reaction material was put into a crystallization tank, and water was added to precipitate crystals. Bromo-naphthol was obtained by filtration, washing with water until pH6-7, and drying. The yield was over 90%. |