2,3-Dihydroxynapthalene
2,3-Dihydroxynaphthalene
CAS: 92-44-4
Molecular Formula: C10H8O2
2,3-Dihydroxynapthalene - Names and Identifiers
| Name | 2,3-Dihydroxynaphthalene |
| Synonyms | 2,3-NAPHTHALENEDIOL 2,3-Naphthalenediol naphthalene-2,3-diol Naphthalene-2,3-diol Naphthalenediol-(2,3) 2,3-Dihydroxynapthalene 2,3-DIHYDROXYNAPHTHALENE 2,3-Dihydroxynaphthylene 2,3-Dihydroxynaphthalene 2,3-dihydrroxynaphthalene |
| CAS | 92-44-4 |
| EINECS | 202-156-7 |
| InChI | InChI=1/C10H8O2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6,11-12H |
2,3-Dihydroxynapthalene - Physico-chemical Properties
| Molecular Formula | C10H8O2 |
| Molar Mass | 160.17 |
| Density | 1.0924 (rough estimate) |
| Melting Point | 161-165 °C (lit.)162-164 °C |
| Boling Point | 246.06°C (rough estimate) |
| Flash Point | 175 °C |
| Water Solubility | slightly soluble |
| Solubility | 4g/l |
| Vapor Presure | 0.8 hPa (149 °C) |
| Appearance | White to light brown solid |
| Color | White to pinkish to beige-grayish |
| BRN | 742375 |
| pKa | 9.10±0.40(Predicted) |
| PH | 6 (1g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Sensitive to air |
| Refractive Index | 1.5178 (estimate) |
| MDL | MFCD00004073 |
| Physical and Chemical Properties | off-white to reddish powder. |
| Use | For the preparation of azo dyes |
2,3-Dihydroxynapthalene - 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 | QJ4750000 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | Yes |
| HS Code | 29072900 |
| Toxicity | LD50 orally in Rabbit: 970 mg/kg |
2,3-Dihydroxynapthalene - Introduction
Slightly soluble in water, soluble in alcohol and ether
Last Update：2022-10-16 17:30:09
2,3-Dihydroxynapthalene - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as dye, pharmaceutical intermediate, hair dye, etc. used in the preparation of azo dyes and so on |
| spontaneous combustion temperature | >330°C |
Last Update：2024-04-09 20:52:54
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