disthemin
1-Bromo-2-naphthol
CAS: 573-97-7
Molecular Formula: C10H7BrO
disthemin - Names and Identifiers
| 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 |
disthemin - Physico-chemical Properties
| 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. |
disthemin - 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 | QL3361000 |
| HS Code | 29081000 |
| Hazard Class | IRRITANT |
disthemin - Introduction
Decomposition at 130 ℃. Soluble in alcohol, ether, benzene and acetic acid.
Last Update：2022-10-16 17:26:32
disthemin - Reference Information
| 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%. |
Last Update：2024-04-09 21:11:58
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View History
disthemin
Lysine Impurity 12
Sudan red G
2-{[(2-AMINOPHENYL)SULFONYL]AMINO}ACETAMIDE
ALUMINUM SUBACETATE
Trichloroacetic chloride
磺酸
PARA-SEC-BUTYLPHENOL
(2H7)Benzenamine
meso-3,5-Dimethylmorpholine
Lysine Impurity 12
Sudan red G
2-{[(2-AMINOPHENYL)SULFONYL]AMINO}ACETAMIDE
ALUMINUM SUBACETATE
Trichloroacetic chloride
磺酸
PARA-SEC-BUTYLPHENOL
(2H7)Benzenamine
meso-3,5-Dimethylmorpholine