(R)-Naproxen
SIAL/82170 - pharmaceutical impurity standard
Synonym: (R)-(−)-6-Methoxy-α-methyl-2-naphthaleneacetic acid; Naproxen Impurity G; (2R)
CAS Number: 23979-41-1
Empirical Formula (Hill Notation): C14H14O3
Molecular Weight: 230.26
EC Number: 245-966-6
MDL Number: MFCD00870716
Linear Formula: CH3OC10H6CH(CH3)CO2H
Product Type: Chemical
| API family | naproxen |
| application(s) | pharmaceutical (small molecule) |
| assay | ≥98.0% (HPLC) |
| format | neat |
| impurities | ≤0.5% water |
| InChI | 1S/C14H14O3/c1-9(14(15)16 |
| InChI key | CMWTZPSULFXXJA-SECBINFHSA |
| mp | 156-158 °C (lit.) |
| optical activity | [α]/D -71±4°, c = 0.1 in chloroform |
| Quality Level | 100 ![]() |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | COc1ccc2cc(ccc2c1)[C@@H]( |
| storage temp. | 2-8°C |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P301 + P312 + P330 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98.0% (HPLC) |
| mp | 156-158 °C (lit.) |
| Storage Temp. | 2-8°C |
| UNSPSC | 41116107 |


