2,7-Dihydroxynaphthalene
Synonym(s):2,7-Dihydroxynaphthalene;2,7-Naphthalenediol
- CAS NO.：582-17-2
- Empirical Formula: C10H8O2
- Molecular Weight: 160.17
- MDL number: MFCD00004085
- EINECS: 209-478-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-25 23:32:35
What is 2,7-Dihydroxynaphthalene?
Chemical properties
Light yellow to grey needle crystal
The Uses of 2,7-Dihydroxynaphthalene
2,7-Dihydroxynaphthalene can be used as starting material for the synthesis of sulfonic acids and divinylnaphthalenes.
The Uses of 2,7-Dihydroxynaphthalene
2,7-Dihydroxynaphthalene is a reagent used in the preparation of monomers of high carbon materials. Also used in the synthesis of splitomicin analogues.
The Uses of 2,7-Dihydroxynaphthalene
2,7-Naphthalenediol is a reagent used in the preparation of monomers of high carbon materials. Also used in the synthesis of splitomicin analogues.
Synthesis
2,7-Naphthalenediol [582-17-2], mp 194℃, is produced by caustic fusion of naphthalene-2,7- disulfonic acid or 2-hydroxynaphthalene-7-sulfonic acid at 300℃. It undergoes amination at 250℃ to give 2,7-naphthalenediamine and couples with diazotized anilines in the 1-position or in the 1,8-positions. It forms a resin with formaldehyde.
Properties of 2,7-Dihydroxynaphthalene
| Melting point: | 185-190 °C (lit.) |
| Boiling point: | 246.06°C (rough estimate) |
| Density | 1.0924 (rough estimate) |
| refractive index | 1.5418 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Powder |
| pka | 9.14±0.40(Predicted) |
| color | Gray |
| Water Solubility | insoluble |
| BRN | 2042383 |
| CAS DataBase Reference | 582-17-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,7-Naphthalenediol(582-17-2) |
| EPA Substance Registry System | 2,7-Naphthalenediol (582-17-2) |
Safety information for 2,7-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 2,7-Dihydroxynaphthalene
| InChIKey | DFQICHCWIIJABH-UHFFFAOYSA-N |
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