1-Naphthol
SIAL/N2780 - BioXtra, ≥99%
Synonym: α-Naphthol; 1-Hydroxynaphthalene
CAS Number: 90-15-3
Empirical Formula (Hill Notation): C10H8O
Molecular Weight: 144.17
EC Number: 201-969-4
MDL Number: MFCD00003930
Linear Formula: C10H7OH
Product Type: Chemical
| anion traces | sulfate (SO42-): ≤0.05% |
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | ≥99% |
| autoignition temp. | 1007 °F |
| bp | 278-280 °C (lit.) |
| cation traces | Al: ≤0.0005% |
| Ca: ≤0.0005% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| K: ≤0.005% | |
| Mg: ≤0.0005% | |
| Na: ≤0.005% | |
| Pb: ≤0.001% | |
| Zn: ≤0.0005% | |
| expl. lim. | 5 % |
| form | powder |
| ign. residue | ≤0.1% |
| impurities | ≤0.0005% Phosphorus (P) |
| ≤0.1% Insoluble matter | |
| InChI | 1S/C10H8O/c11-10-7-3-5-8- |
| InChI key | KJCVRFUGPWSIIH-UHFFFAOYSA |
| mp | 94-96 °C (lit.) |
| product line | BioXtra |
| Quality Level | 200 ![]() |
| SMILES string | Oc1cccc2ccccc12 |
| solubility | ethanol: 1 M, clear |
| storage temp. | room temp |
| vapor density | 4.5 (120 °C, vs air) |
| vapor pressure | 1 mmHg ( 94 °C) |
| Application: | 1-Naphthol is used as a biomarker for exposure to polycyclic aromatic hydrocarbons (PAHs) in humans and livestock. 1-Naphthol is suitable for detecting the presence of carbohydrates and in various reactions. |
| General description: | 1-Naphthol is a hydroxyl-aromatic compound. Its thermodynamic properties such as heat capacity, sublimation pressure, vapor pressure, enthalpies of combustion, formation and fusion have been estimated. |
| Symbol | ![]() ![]() ![]() GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302 - H311 - H315 - H317 - H318 - H335 - H371 - H410 |
| Precautionary statements | P273 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P308 + P311 |
| Hazard Codes | Xn,N |
| Risk Statements | 21/22-37/38-41-51/53 |
| Safety Statements | 22-26-37/39-61 |
| RIDADR | UN2811 - class 6.1 - PG 3 - EHS - Toxic solids, organic, n.o.s., |
| WGK Germany | WGK 1 |
| Flash Point(F) | 257.0 °F - closed cup |
| Flash Point(C) | 125 °C - closed cup |
| Purity | ≥99% |
| bp | 278-280 °C (lit.) |
| mp | 94-96 °C (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12352100 |





