Impurity reference standards
Naproxen impurities & reference standards
Characterised Naproxen impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
47reference materials
4isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Naproxen Sodium
26159-34-2 · C14H13NaO3
(R)-2-(5-Iodo-6-methoxynaphthalen-2-yl)propanoic acid
- CAS
- 116883-61-5
- Formula
- C14H13IO3
- MW
- 356.15 g/mol
VQ-032070
2-(6-(3-Hydroxy-2,2-dimethylpropoxy)naphthalen-2-yl)propanoic acid
- CAS
- 2601735-81-1
- Formula
- C18H22O4
- MW
- 302.4 g/mol
VQ-032069
Isopropyl2-hydroxy-2-(6-methoxynaphthalen-2-yl)acetate
- CAS
- 2749415-34-5
- Formula
- C16H18O4
- MW
- 274.32 g/mol
VQ-049193
FAQs — Naproxen impurities
Which Naproxen impurities do you supply?
We list 47 Naproxen-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Naproxen impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Naproxen impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Naproxen impurity standards
We reply within one business day with price, pack options, lead time and documentation.