1,3-DIHYDROXYNAPHTHALENE
Synonym(s):1,3-Naphthalenediol;Naphthoresorcinol
- CAS NO.：132-86-5
- Empirical Formula: C10H8O2
- Molecular Weight: 160.17
- MDL number: MFCD00003965
- EINECS: 205-079-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-31 16:38:56
What is 1,3-DIHYDROXYNAPHTHALENE?
Chemical properties
orange-pink to brown crystalline powder. 1,3-Naphthalenediol [132-86-5], naphthoresorcinol, mp 124℃, is synthesized by hydrolysis of 1,3-naphthalenediamine with sulfuric acid; by heating 1-amino-3-hydroxy-naphthalene-4-sulfonic acid with acid; or by cyclization of ethyl phenylacetoacetate. It is used as an analytical reagent for sugars and glucuronic acid in urine. It is oxidized in alkaline solution to 2-hydroxy-1,4-naphthoquinone and reacts with ammonia at 140℃ to give 3-amino-1- naphthol and 1,3-naphthalenediamine.
The Uses of 1,3-DIHYDROXYNAPHTHALENE
Reagent for sugars, oils, and for glucuronic acid in urine: Forsyth, Nature 161, 239 (1948); Heyns, Kelch, Z. Anal. Chem. 139, 339 (1953).
The Uses of 1,3-DIHYDROXYNAPHTHALENE
1,3-Naphthalenediol is a derivative of naphthalene (N345600) and may have antibacterial activity against oral bacteria.Dyes and metabolites.
What are the applications of Application
1,3-Dihydroxynaphthalene is a reagent for the naphthoresorcinol test of Tollens and Rorive
Properties of 1,3-DIHYDROXYNAPHTHALENE
| Melting point: | 123-125 °C(lit.) |
| Boiling point: | 246.06°C (rough estimate) |
| Density | 1.0924 (rough estimate) |
| refractive index | 1.5418 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | ethanol: soluble50mg/mL |
| form | crystalline |
| pka | 9.15±0.40(Predicted) |
| color | white to tan |
| Water Solubility | Soluble in ethanol (50 mg/ml), and water. |
| Sensitive | Light Sensitive |
| Merck | 14,6396 |
| BRN | 2044002 |
| CAS DataBase Reference | 132-86-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3-Naphthalenediol (132-86-5) |
Safety information for 1,3-DIHYDROXYNAPHTHALENE
| Signal word | Warning |
| Pictogram(s) |
 Health Hazard GHS08 |
| GHS Hazard Statements |
H341:Germ cell mutagenicity |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P280:Wear protective gloves/protective clothing/eye protection/face protection. P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. P501:Dispose of contents/container to..… |
Computed Descriptors for 1,3-DIHYDROXYNAPHTHALENE
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