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Pharmacopeial Impurities (EP / USP / BP)

Naproxen EP Impurity G

Reference StandardAvailable on request

Buy Naproxen EP Impurity G (CAS 23979-41-1) from Zemixal: C14H14O3, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes
Naproxen EP Impurity G chemical structure
CAS number23979-41-1
FormulaC14H14O3
Molar mass230.26 g/mol
Physical formSolid
HS code38229090
InChIKeyCMWTZPSULFXXJA-SECBINFHSA-N
IUPAC name(2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid

About Naproxen EP Impurity G

Zemixal lists Naproxen EP Impurity G for laboratories that identify, quantify or control Naproxen and its related substances. Identity at a glance (Reference Standard): CAS 23979-41-1, formula C14H14O3 and molar mass 230.26 g/mol. It is handled as a solid.

Use cases we see most often

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

Handling and storage

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Naproxen

See every impurity, metabolite and related compound we list for this API.

Naproxen standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Naproxen EP Impurity G
Product nameNaproxen EP Impurity G
Catalogue numberZX-022231
CAS number23979-41-1
IUPAC name(2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid
Molecular formulaC14H14O3
Molar mass230.26 g/mol
Exact mass230.0943
GradeReference Standard
Physical formSolid
XLogP33.3
H-bond donors / acceptors1 / 3
Topological polar surface area46.5 Ų
HS code38229090
InChIKeyCMWTZPSULFXXJA-SECBINFHSA-N
SMILESC[C@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)O
PubChem CID169118
SynonymsNaproxen 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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

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

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Naproxen EP Impurity G
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Naproxen EP Impurity G

Which CAS number identifies Naproxen EP Impurity G?
Naproxen EP Impurity G is registered under CAS 23979-41-1. You may also see it listed as Naproxen Related compound G, Naproxen - Impurity G, (R)-Naproxen. Our catalogue number for this item is ZX-022231.
What are the formula and molar mass of Naproxen EP Impurity G?
For Naproxen EP Impurity G, its formula is C14H14O3 and its molar mass is 230.26 g/mol. The systematic (IUPAC) name is (2R)-2-(6-methoxynaphthalen-2-yl)propanoic acid. InChIKey CMWTZPSULFXXJA-SECBINFHSA-N lets you match it in any structure database.
How is Naproxen EP Impurity G used in pharmaceutical QC?
Naproxen EP Impurity G is a characterised reference material linked to Naproxen. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Naproxen EP Impurity G?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Naproxen EP Impurity G?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Naproxen EP Impurity G to my country?
Yes. Because Naproxen EP Impurity G is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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