Description

Naproxen is a well-established non-steroidal anti-inflammatory drug (NSAID) belonging to the propionic acid derivative class. It is valued for its potent anti-inflammatory, analgesic, and antipyretic properties, making it a critical active pharmaceutical ingredient (API). This compound is essential for manufacturers in the pharmaceutical industry producing prescription and over-the-counter medications for pain and inflammation management.

Application

• Pharmaceutical API: Primary use as the active ingredient in solid oral dosage forms (tablets, capsules) and liquid suspensions for pain relief.
• Analgesic Formulations: Used in medications targeting conditions like arthritis, menstrual cramps, gout, tendonitis, and general musculoskeletal pain.
• Anti-inflammatory Medications: Key component in drugs designed to reduce inflammation and swelling associated with various ailments.
• Antipyretic Drugs: Incorporated into formulations aimed at reducing fever.
• Veterinary Pharmaceuticals: Applied in veterinary medicine for pain and inflammation management in animals.
• Research & Development: Serves as a reference standard and a key intermediate in pharmaceutical R&D for novel drug discovery.

Basic Information

Product Name	Naproxen
CAS No.	22204-53-1
Molecular Formula	C₁₄H₁₄O₃
Molecular Weight	230.26 g/mol
Synonyms	(+)-(S)-2-(6-Methoxynaphthalen-2-yl)propanoic acid; (S)-Naproxen; (+)-Naproxen; d-Naproxen; Aleve; Anaprox; Naprosyn; 6-Methoxy-α-methyl-2-naphthaleneacetic acid
EINECS	244-838-7

Quality Control

Our Naproxen is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP, EP, and BP. Every batch undergoes comprehensive analytical testing for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting all test results are provided to ensure full traceability and compliance for our global pharmaceutical partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.5% - 101.0% (on anhydrous basis)
Specific Rotation	+63.0° to +68.5°
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.