82170

(R)-Naproxen

pharmaceutical impurity standard

• Synonym(s): (R)-(−)-6-Methoxy-α-methyl-2-naphthaleneacetic acid, Naproxen Impurity G, (2R)-2-(6-Methoxy-2-naphthyl)propionic acid, (2R)-2-(6-Methoxynaphthalen-2-yl)propanoic acid, (R)-Naproxen
• Linear Formula: CH₃OC₁₀H₆CH(CH₃)CO₂H
• CAS Number: 23979-41-1
• Molecular Weight: 230.26
• EC Number: 245-966-6
• MDL number: MFCD00870716
• UNSPSC Code: 12352200
• PubChem Substance ID: 329769238

Properties

• Quality Level: 100
• API family: naproxen
• Assay: ≥98.0% (HPLC)
• optical activity: [α]/D -71±4°, c = 0.1 in chloroform
• shelf life: limited shelf life, expiry date on the label
• impurities: ≤0.5% water
• mp: 156-158 °C (lit.)
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: 2-8°C
• SMILES string: COc1ccc2cc(ccc2c1)[C@@H](C)C(O)=O
• InChI: 1S/C14H14O3/c1-9(14(15)16)10-3-4-12-8-13(17-2)6-5-11(12)7-10/h3-9H,1-2H3,(H,15,16)/t9-/m1/s1
• InChI key: CMWTZPSULFXXJA-SECBINFHSA-N

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302
• Precautionary Statements: P301 + P312 + P330
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable