2,5-Naphthalenediol
1,6-Dihydroxy Naphthalene
CAS: 575-44-0
Molecular Formula: C10H8O2
2,5-Naphthalenediol - Names and Identifiers
| Name | 1,6-Dihydroxy Naphthalene |
| Synonyms | c.i.76630 C.I. 76630 1,6-NAPHTHALENEDIOL 1,6-Naphthalenediol 2,5-Naphthalenediol 6-Hydroxy-1-naphthol naphthalene-1,6-diol 1,6-Dihydroxynaphtalene 1,6-DIHYDROXYNAPHTHALENE 1,6-Dihydroxynaphthalene 2,5-DIHYDROXYNAPHTHALENE 1,6-Dihydroxy Naphthalene (1R,2S,4R)-endo-Norborneol Naphthalene, 1,6-dihydroxy- |
| CAS | 575-44-0 |
| EINECS | 209-386-7 |
| InChI | InChI=1/C10H8O2/c11-8-4-5-9-7(6-8)2-1-3-10(9)12/h1-6,11-12H |
| InChIKey | FZZQNEVOYIYFPF-UHFFFAOYSA-N |
2,5-Naphthalenediol - Physico-chemical Properties
| Molecular Formula | C10H8O2 |
| Molar Mass | 160.17 |
| Density | 1.0924 (rough estimate) |
| Melting Point | 130-133 °C (lit.) |
| Boling Point | 246.06°C (rough estimate) |
| Flash Point | 193.5°C |
| Solubility | very faint turbidity in Methanol |
| Vapor Presure | 3.62E-06mmHg at 25°C |
| Appearance | Powder or Crystalline Powder |
| Color | White to brown |
| BRN | 1939032 |
| pKa | 9.26±0.40(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.5418 (estimate) |
| Use | Used as a dye, pharmaceutical intermediates |
2,5-Naphthalenediol - 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 | 2 |
| RTECS | QJ4743333 |
| TSCA | Yes |
| HS Code | 29072990 |
2,5-Naphthalenediol - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | 1, 6-dihydroxynaphthalene can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process. |
| synthesis method | using refined naphthalene as raw material, successively using 98% sulfuric acid and fuming sulfuric acid as sulfonating agents, 1,6-naphthalene disulfonate sodium salt was prepared, and sodium hydroxide was used as alkali flux, and 1,6-dihydroxynaphthalene was prepared by normal pressure and high temperature alkali melting. |
| Use | Used as dye and pharmaceutical intermediate |
Last Update：2024-04-17 11:53:22
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