Naproxen Impurity I

Name: Naproxen Impurity I
Brand: Vaqora Chemicals
SKU: VQ-005316

About Naproxen Impurity I

Listed under CAS 23981-47-7, Naproxen Impurity I is an impurity of Naproxen available from Vaqora Chemicals, specified at 96% purity. The compound has the formula C13H12O3, corresponding to a molecular weight of 216.23 g/mol. Its systematic (IUPAC) name is 2-(6-methoxynaphthalen-2-yl)acetic acid. It is also known as 6-Methoxy-2-naphthaleneacetic Acid or 6-Methoxy-2-naphthylacetic Acid.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Naproxen, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. Stock is available for quick dispatch.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Naproxen

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

Naproxen impurities

Specifications & identifiers

Chemical identifiers
Product name	Naproxen Impurity I
Catalogue No.	VQ-005316
CAS Number	23981-47-7
Other CAS	141969-30-4, 141969-29-1
IUPAC name	2-(6-methoxynaphthalen-2-yl)acetic acid
Molecular formula	C₁₃H₁₂O₃
Molecular weight	216.23 g/mol
Exact mass	216.0786
Grade	Reference Standard
Purity / assay	96%
HSN code	38229090
InChIKey	PHJFLPMVEFKEPL-UHFFFAOYSA-N
SMILES	COC1=CC2=C(C=C1)C=C(C=C2)CC(=O)O
PubChem CID	32176

Physical properties
Physical form	Solid
LogP (XLogP3)	2.6
H-bond donors / acceptors	1 / 3
TPSA	46.5 Å²
Synonyms	6-Methoxy-2-naphthaleneacetic Acid, 6-Methoxy-2-naphthylacetic Acid, 6-MNA, Desmethyl Naproxen, (6-methoxy-2-naphthyl)acetic acid, 6MNA, (6-methoxynaphthalen-2-yl)acetic acid, 6-MNA cpd, Naproxen EP Impurity I, 6-Methoxynaphthalene-2-acetic acid, 6-MNAA, 2-(6-methoxy-2-naphthyl)acetic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, 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 Impurity I?

The CAS Registry Number of Naproxen Impurity I is 23981-47-7. It is also known as 6-Methoxy-2-naphthaleneacetic Acid, 6-Methoxy-2-naphthylacetic Acid, 6-MNA.

What is the molecular formula and molecular weight of Naproxen Impurity I?

Naproxen Impurity I has the molecular formula C13H12O3 and a molecular weight of 216.23 g/mol. Its IUPAC name is 2-(6-methoxynaphthalen-2-yl)acetic acid.

What is Naproxen Impurity I used for?

Naproxen Impurity I 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 Impurity I can I order?

We supply Naproxen Impurity I in Reference Standard (96%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naproxen Impurity I?

Yes. Every lot of Naproxen Impurity I 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 Impurity I be shipped internationally?

Yes. Naproxen Impurity I 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.