Naproxen Sodium

Name: Naproxen Sodium
Brand: Vaqora Chemicals
SKU: VQ-004009

About Naproxen Sodium

Naproxen Sodium is an analgesic / anti-inflammatory API (IP/BP/USP grade) carrying the CAS registry number 26159-34-2. The compound has the formula C14H13NaO3, corresponding to a molecular weight of 252.24 g/mol. Systematically, it is named sodium (2S)-2-(6-methoxynaphthalen-2-yl)propanoate. Common synonyms include Naproxen sodium salt and Primeral.

The material typically appears as a white to almost white crystalline powder. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

This API belongs to our analgesic and anti-inflammatory APIs portfolio and is supplied to IP/BP/USP specifications for formulators, contract manufacturers and generic drug developers. It is used across pharmaceutical manufacturing.

Available in 1 kg, 5 kg and 25 kg packs, Naproxen Sodium is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Pharmaceutical formulation
Generic drug development

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 Sodium
Catalogue No.	VQ-004009
CAS Number	26159-34-2
IUPAC name	sodium (2S)-2-(6-methoxynaphthalen-2-yl)propanoate
Molecular formula	C₁₄H₁₃NaO₃
Molecular weight	252.24 g/mol
Exact mass	252.0762
Grade	IP/BP/USP
InChIKey	CDBRNDSHEYLDJV-FVGYRXGTSA-M
SMILES	C[C@@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)[O-].[Na+]
PubChem CID	23681059

Physical properties
Physical form	Powder
Appearance	White to almost white crystalline powder
H-bond donors / acceptors	0 / 3
TPSA	49.4 Å²
Synonyms	Naproxen sodium salt, Primeral, Naprium, Diocodal, Naproxen sodium anhydrous, Topcare all day pain relief, Belmora Flanax, Aleve Caplets, Aleve Gelcaps, Bayer Aleve, Careall Naproxen, Naproxen Caplets

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P280, 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

Other grades of CAS 26159-34-2

Reference Standard

Naproxen Sodium Salt

CAS: 26159-34-2
Formula: C₁₄H₁₃NaO₃
MW: 252.24 g/mol

VQ-007602

Frequently asked questions

What is the CAS number of Naproxen Sodium?

The CAS Registry Number of Naproxen Sodium is 26159-34-2. It is also known as Naproxen sodium salt, Primeral, Naprium.

What is the molecular formula and molecular weight of Naproxen Sodium?

Naproxen Sodium has the molecular formula C14H13NaO3 and a molecular weight of 252.24 g/mol. Its IUPAC name is sodium (2S)-2-(6-methoxynaphthalen-2-yl)propanoate.

What is Naproxen Sodium used for?

Naproxen Sodium 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 Sodium can I order?

We supply Naproxen Sodium in IP/BP/USP grade, in 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naproxen Sodium?

Yes. Every lot of Naproxen Sodium 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 Sodium be shipped internationally?

Yes. Naproxen Sodium 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.