Naproxen EP Impurity G

About Naproxen EP Impurity G

Naproxen EP Impurity G is a pharmacopeial impurity of Naproxen carrying the CAS registry number 23979-41-1. Its molecular formula is C14H14O3 and its molecular weight is 230.26 g/mol. Its systematic (IUPAC) name is (2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid. Common synonyms include Naproxen Related compound G and Naproxen - Impurity G.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Pharmaceutical QC and development laboratories use this impurity standard of Naproxen to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Naproxen EP Impurity G in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Naproxen

View every impurity, metabolite and intermediate we list for Naproxen.

Naproxen impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Naproxen EP Impurity G
Catalogue No.	VQ-023207
CAS Number	23979-41-1
IUPAC name	(2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid
Molecular formula	C₁₄H₁₄O₃
Molecular weight	230.26 g/mol
Exact mass	230.0943
Grade	Reference Standard
HSN code	38229090
InChIKey	CMWTZPSULFXXJA-SECBINFHSA-N
SMILES	C[C@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)O
PubChem CID	169118

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	1 / 3
TPSA	46.5 Å²
Synonyms	Naproxen Related compound G, Naproxen - Impurity G, (R)-Naproxen, l-Naproxen, (-)-Naproxen, Naproxen, (-)-, (R)-(-)-Naproxen, Sodium (+)-6-methoxy-alpha-methyl-2-naphthaleneacetate, 2-Naphthaleneacetic acid, 6-methoxy-alpha-methyl-, sodium salt, (+)-, (R)-2-(6-Methoxynaphthalen-2-yl)propanoic acid, r-naproxen, (R)-2-(2-Methoxynaphthalen-6-yl)propanoic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Naproxen EP Impurity G?

The CAS Registry Number of Naproxen EP Impurity G is 23979-41-1. It is also known as Naproxen Related compound G, Naproxen - Impurity G, (R)-Naproxen.

What is the molecular formula and molecular weight of Naproxen EP Impurity G?

Naproxen EP Impurity G has the molecular formula C14H14O3 and a molecular weight of 230.26 g/mol. Its IUPAC name is (2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid.

What is Naproxen EP Impurity G used for?

Naproxen EP Impurity G is supplied as a characterised reference material related to Naproxen. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Naproxen EP Impurity G can I order?

We supply Naproxen EP Impurity G in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naproxen EP Impurity G?

Yes. Every lot of Naproxen EP Impurity G is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Naproxen EP Impurity G be shipped internationally?

Yes. Naproxen EP Impurity G is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.