Naproxen

Name: Naproxen
Brand: Vaqora Chemicals
SKU: VQ-007601

About Naproxen

Naproxen is a high-purity reference standard of Naproxen carrying the CAS registry number 22204-53-1. With the molecular formula C14H14O3, it has a molar mass of 230.26 g/mol. Systematically, it is named (2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid. It is also known as (S)-Naproxen or po-Naproxen.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Laboratories use this Naproxen standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Naproxen in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Naproxen

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

Naproxen impurities

Specifications & identifiers

Chemical identifiers
Product name	Naproxen
Catalogue No.	VQ-007601
CAS Number	22204-53-1
Other CAS	26159-34-2
IUPAC name	(2S)-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-VIFPVBQESA-N
SMILES	C[C@@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)O
PubChem CID	156391

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	1 / 3
TPSA	46.5 Å²
Synonyms	(+)-(S)-2-(6-methoxynaphthalen-2-yl) propanoic acid, (S)-(+)-2-(6-Methoxy-2-naphthyl)propionic acid, (S)-Naproxen, (S)-6-Methoxy-alpha-methyl-2-naphthaleneacetic Acid, po-Naproxen, Aproxen, Bonyl, Reuxen, Veradol, Xenar, Xenar-CR, d-2-(6-Methoxy-2-naphthyl)propionic Acid

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P280, P301 + P316, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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?

The CAS Registry Number of Naproxen is 22204-53-1. It is also known as (+)-(S)-2-(6-methoxynaphthalen-2-yl) propanoic acid, (S)-(+)-2-(6-Methoxy-2-naphthyl)propionic acid, (S)-Naproxen.

What is the molecular formula and molecular weight of Naproxen?

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

What is Naproxen used for?

Naproxen 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 can I order?

We supply Naproxen in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naproxen?

Yes. Every lot of Naproxen 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 be shipped internationally?

Yes. Naproxen 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.