Description

Methocarbamol CAS NO 532-03-6 is a centrally acting skeletal muscle relaxant belonging to the carbamate class. It is a critical active pharmaceutical ingredient (API) valued for its efficacy in managing acute musculoskeletal pain and associated muscle spasms. This compound is essential for pharmaceutical manufacturers developing prescription medications for pain management and rehabilitation. Its reliable mechanism of action makes it a cornerstone in therapeutic formulations targeting muscle-related discomfort.

Application

• Primary use as an Active Pharmaceutical Ingredient (API) in prescription muscle relaxant medications.
• Formulation of oral tablets and capsules for the treatment of acute, painful musculoskeletal conditions.
• Use in adjunctive therapy to support rest, physical therapy, and other measures for muscle spasm relief.
• Manufacturing of combination drug products for enhanced analgesic and muscle relaxant effects.
• Research and development of new pharmaceutical dosage forms and drug delivery systems.
• Reference standard in analytical laboratories for quality control and method development.

Basic Information

Product Name	Methocarbamol
CAS No.	532-03-6
Molecular Formula	C11H15NO5
Molecular Weight	241.24 g/mol
Synonyms	Guaiacol glyceryl ether carbamate; 3-(2-Methoxyphenoxy)-1,2-propanediol 1-carbamate; Robaxin; Carbamates, guaiacol glyceryl ether; Methocarbamolum; AHR-438; NSC-526914; Guaifenesin carbamate
EINECS	208-536-1

Quality Control

Our Methocarbamol is manufactured and tested to meet stringent pharmaceutical standards. Quality assurance protocols ensure compliance with relevant pharmacopoeial monographs, including USP and EP. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We are committed to GMP principles and supply chain transparency to support 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). The product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	98.0% - 102.0% (on dried basis)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%
Microbiological Enumeration	Meets Ph. Eur. criteria for non-sterile substances

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