Shipping to 128 countriesCOA and SDS with every lotQuotes within one business day
contact@zemixal.com
Bulk CASAccount
API Reference Standards

Naproxen

Reference StandardIn stock

Order Naproxen (CAS 22204-53-1) online at Zemixal. Request a quote with price, lead time and documents. Part of our API Reference Standards range.

Pack sizes
Naproxen chemical structure
CAS number22204-53-1
FormulaC14H14O3
Molar mass230.26 g/mol
Physical formSolid
HS code38229090
InChIKeyCMWTZPSULFXXJA-VIFPVBQESA-N
IUPAC name(2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid

About Naproxen

Analytical teams working on Naproxen use Naproxen as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 22204-53-1, formula C14H14O3 and molar mass 230.26 g/mol. It is handled as a solid.

Where it is used

  • Identification & assay
  • Method development & validation
  • QC reference material

Handling and storage

Classified under GHS with signal word Danger and hazard statements H301, H302, H315 and H319. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg, 100 mg and 250 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Naproxen

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

Naproxen standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Naproxen
Product nameNaproxen
Catalogue numberZX-006671
CAS number22204-53-1
Other CAS numbers26159-34-2
IUPAC name(2S)-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-VIFPVBQESA-N
SMILESC[C@@H](C1=CC2=C(C=C1)C=C(C=C2)OC)C(=O)O
PubChem CID156391
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

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • 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 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
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted 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

Which CAS number identifies Naproxen?
Naproxen is registered under CAS 22204-53-1. You may also see it listed as (+)-(S)-2-(6-methoxynaphthalen-2-yl) propanoic acid, (S)-(+)-2-(6-Methoxy-2-naphthyl)propionic acid, (S)-Naproxen. Our catalogue number for this item is ZX-006671.
What are the formula and molar mass of Naproxen?
For Naproxen, its formula is C14H14O3 and its molar mass is 230.26 g/mol. The systematic (IUPAC) name is (2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid. InChIKey CMWTZPSULFXXJA-VIFPVBQESA-N lets you match it in any structure database.
How is Naproxen used in pharmaceutical QC?
Naproxen 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?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Naproxen?
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 to my country?
Yes. Because Naproxen 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.

More Naproxen standards

More in API Reference Standards

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list
Compare 0 of 4Compare now