Naproxen

Synonimy: (+)-2-(6-Methoxy-2-naphthyl)propionic acid, (S)-Naproxen, Naprosyn, Aleve, Anaprox, Naprelan, (S)-6-Methoxy-α-methyl-2-naphthaleneacetic acid

Naproxen is a widely prescribed nonsteroidal anti-inflammatory drug (NSAID) of the propionic acid class, valued by formulators for its potent analgesic, antipyretic, and anti-inflammatory effects. In the B2B pharmaceutical market, demand for high-purity naproxen remains strong across generic solid dosage, topical gels, and veterinary preparations, driven by its established efficacy and favorable safety profile compared to other NSAIDs.

Chemically, naproxen is the (S)-enantiomer of 2-(6-methoxy-2-naphthyl)propionic acid, with a molecular formula of C14H14O3 and a molecular weight of 230.26 g/mol. It is practically insoluble in water but freely soluble in common organic solvents such as ethanol and acetone, making it suitable for a range of formulation processes. The compound is typically produced via synthetic routes that ensure high enantiomeric purity, which is critical for its pharmacological activity.

LyvBio supplies naproxen with an assay of 99.0%–101.0% (HPLC, on dried basis), meeting pharmacopeial standards including USP and EP. Each batch is tested for identity, impurities, residual solvents, and heavy metals to ensure compliance with regulatory requirements. Our material is manufactured under cGMP conditions, with full documentation support for ANDA, NDA, and other regulatory submissions.

Product Overview & Composition

Naproxen is a single active pharmaceutical ingredient (API) supplied as a white to off-white crystalline powder. It contains no excipients or carriers, ensuring consistent potency and purity for downstream processing. The product is available in various particle sizes to accommodate different formulation needs, from direct compression to wet granulation.

Applications & Product Lines

• Oral solid dosage: Tablets and capsules for pain relief, arthritis, and dysmenorrhea.
• Topical formulations: Gels and creams for localized musculoskeletal pain.
• Veterinary medicine: Used in companion animals for post-operative pain and inflammation.
• Combination products: With esomeprazole or other agents for gastroprotection.
• Research and development: Reference standard and impurity profiling.

Quality Control Standards

Bulk Packaging & Supply

• Opakowanie: 25 kg fiber drum with double polyethylene liner, or as per customer request.
• MOQ: 5 kg
• Czas realizacji: 3-5 business days for stock items.
• Dokumentacja: COA, MSDS, TDS, and regulatory support available upon request.

Najczęściej zadawane pytania

What is the minimum order quantity (MOQ) for naproxen?

Our standard MOQ is 5 kg. For smaller quantities, please contact our sales team to discuss your specific needs.

What is the delivery time for stock items?

For stock items, the lead time is 3-5 business days from order confirmation. We maintain sufficient inventory to ensure prompt shipment.

Do you provide a Certificate of Analysis (COA) and samples?

Yes, a COA is available for each batch. We can also provide samples for evaluation purposes; please specify your requirements when contacting us.

Contact & Ordering Information

• Company: LyvBio Co., Ltd.
• Address: Room 5-0203, Courtyard 205, Lianhu District, Xi’an, Shaanxi, China
• Email: info@lyvbio.com
• Phone: +86-29-65816888

send us your specification for a quotation.