A3127712
2,3-Dihydroxynaphthalene , 98% , 92-44-4
Synonym(s):
2,3-Dihydroxynaphthalene;2,3-Naphthalenediol
CAS NO.：92-44-4
Empirical Formula: C10H8O2
Molecular Weight: 160.17
MDL number: MFCD00004073
EINECS: 202-156-7
| Pack Size | Price | Stock | Quantity |
| 25G | RMB68.80 | In Stock |
|
| 100G | RMB204.80 | In Stock |
|
| 250G | RMB511.20 | In Stock |
|
| 500G | RMB856.00 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 161-165 °C (lit.)
162-164 °C |
| Boiling point: | 246.06°C (rough estimate) |
| Density | 1.0924 (rough estimate) |
| bulk density | 500kg/m3 |
| vapor pressure | 0.8 hPa (149 °C) |
| refractive index | 1.5178 (estimate) |
| Flash point: | 175 °C |
| storage temp. | Store below +30°C. |
| solubility | 4g/l |
| pka | 9.10±0.40(Predicted) |
| form | Powder |
| color | White to pinkish to beige-grayish |
| PH | 6 (1g/l, H2O, 20℃) |
| Water Solubility | slightly soluble |
| BRN | 742375 |
| Cosmetics Ingredients Functions | HAIR DYEING |
| Cosmetic Ingredient Review (CIR) | 2,3-Dihydroxynaphthalene (92-44-4) |
| InChI | 1S/C10H8O2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6,11-12H |
| InChIKey | JRNGUTKWMSBIBF-UHFFFAOYSA-N |
| SMILES | Oc1cc2ccccc2cc1O |
| CAS DataBase Reference | 92-44-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,3-Naphthalenediol(92-44-4) |
| EPA Substance Registry System | 2,3-Naphthalenediol (92-44-4) |
Description and Uses
2,3-Dihydroxynaphthalene is used in making dyes, pigments, fluorescent whiteners, tanning agents, antioxidants, and antiseptics.
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302-H318 |
| Precautionary statements | P264-P270-P280-P301+P312-P305+P351+P338-P501 |
| PPE | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39 |
| WGK Germany | 3 |
| RTECS | QJ4750000 |
| F | 10-23 |
| Autoignition Temperature | >330 °C |
| TSCA | TSCA listed |
| HS Code | 29072900 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 |
| Toxicity | LD50 orally in Rabbit: 970 mg/kg |
