Contamination and Impurities
Regulatory Consultations

Technical Data

CAS Number

23979-41-1

Alternate CAS#

NA

Molecular Formula

C14H14O3

Molecular Weight

230.26 g/mol

IUPAC Chemical Name

(R)-2-(6-methoxynaphthalen-2-yl)propanoic acid

Synonyms

Naproxen USP Related Compound G; Naproxen EP Impurity G; (alphaR)-6-methoxy-alpha-methyl-2-naphthaleneacetic acid; 2-Naphthaleneacetic acid, 6-methoxy-alpha-methyl-, (R)- (8CI)

USP Name

Naproxen USP Related Compound G

EP Name

Naproxen EP Impurity G

Appearance Specifications

White to Off-White Solid

Storage Condition

Refrigerator, under inert atmosphere, protect from light

Material Type

Primary Standard

Melting Point

156 °C

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