Naproxen
USP/1457301 - United States Pharmacopeia (USP) Reference Standard
Synonym: (S)
CAS Number: 22204-53-1
Empirical Formula (Hill Notation): C14H14O3
Molecular Weight: 230.26
MDL Number: MFCD00010500
Linear Formula: CH3OC10H6CH(CH3)CO2H
Product Type: Chemical
| API family | naproxen |
| application(s) | pharmaceutical (small molecule) |
| format | neat |
| grade | pharmaceutical primary standard |
| InChI | 1S/C14H14O3/c1-9(14(15)16 |
| InChI key | CMWTZPSULFXXJA-VIFPVBQESA |
| manufacturer/tradename | USP |
| mp | 152-154 °C (lit.) |
| SMILES string | COc1ccc2cc(ccc2c1)[C@H](C |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable |
| Analysis Note: | These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind. |
| Application: | Naproxen USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as: • Dexamethasone Compounded Oral Suspension • Naproxen • Naproxen Compounded Oral Suspension • Naproxen Delayed-Release Tablets • Naproxen Oral Suspension • Naproxen Tablets • Terazosin Tablets |
| Biochem/physiol Actions: | Non-selective cyclooxygenase (COX-1 and COX-2) inhibitor. |
| General description: | This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia ![]() |
| Other Notes: | Sales restrictions may apply. |
| Symbol | ![]() GHS07,GHS08 |
| Signal word | Warning |
| Hazard statements | H302 - H315 - H319 - H335 - H361fd |
| Precautionary statements | P201 - P202 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313 |
| RIDADR | UN 2811 6.1 / PGIII |
| WGK Germany | WGK 3 |
| mp | 152-154 °C (lit.) |
| UNSPSC | 41116107 |



