1,7-Dihydroxynaphthalene
Synonym(s):1,7-Naphthalenediol
- CAS NO.:575-38-2
- Empirical Formula: C10H8O2
- Molecular Weight: 160.17
- MDL number: MFCD00035720
- EINECS: 209-383-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-17 21:30:02
What is 1,7-Dihydroxynaphthalene?
Chemical properties
Yellowish to white powder. 1,7-Naphthalenediol [575-38-2], mp 181℃, is prepared by caustic fusion of 2-hydroxynaphthalene-8-sulfonic acid at 300℃ or by acid desulfonation of 2,8-dihydroxynaphthalene-6- sulfonic acid. It couples with diazotized anilines to form monoazo and disazo derivatives.
The Uses of 1,7-Dihydroxynaphthalene
The preparation of 1,7-Dihydroxynaphthalene and its prompt characterization from its NMR data and peculiarities. Removal of dihydroxynaphthalenes from aqueous solution with the aid of an oxidoreductase polyphenol oxidase and biopolymer chitosan.
What are the applications of Application
1,7-Dihydroxynaphthalene is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.
Properties of 1,7-Dihydroxynaphthalene
Melting point: | 180-184 °C (lit.) |
Boiling point: | 246.06°C (rough estimate) |
Density | 1.0924 (rough estimate) |
refractive index | 1.5418 (estimate) |
Flash point: | 252 °C |
storage temp. | Sealed in dry,Room Temperature |
solubility | DMSO (Slightly), Methanol (Slightly) |
form | Solid |
pka | 9.58±0.40(Predicted) |
color | Beige to Dark Brown |
Water Solubility | Slightly soluble in water. |
λmax | 335nm(Cyclohexane)(lit.) |
BRN | 1908499 |
CAS DataBase Reference | 575-38-2(CAS DataBase Reference) |
NIST Chemistry Reference | 1,7-Dihydroxynaphthalene(575-38-2) |
EPA Substance Registry System | Napthalene-1,7-diol (575-38-2) |
Safety information for 1,7-Dihydroxynaphthalene
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1,7-Dihydroxynaphthalene
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