Description

Ammonio Methacrylate Copolymer Type A (100 Mg) is a pharmaceutical-grade cationic copolymer widely used as a film-forming agent and controlled-release matrix. This polymer is essential for formulating enteric coatings and sustained-release dosage forms, ensuring targeted drug delivery and enhanced bioavailability. It is a critical excipient for pharmaceutical manufacturers, research institutions, and developers of advanced drug delivery systems requiring precise pH-dependent solubility profiles.

Application

• Primary excipient for enteric film coatings on tablets and capsules, protecting APIs from gastric acid.
• Matrix-forming polymer for sustained-release and controlled-release oral solid dosage forms.
• Functional coating agent for taste masking of bitter active pharmaceutical ingredients.
• Key component in pH-dependent drug delivery systems designed for colonic or intestinal release.
• Used in the formulation of microparticles and granules for modified-release profiles.
• Applied in pharmaceutical research and development for prototyping novel delivery mechanisms.

Basic Information

Product Name	Ammonio Methacrylate Copolymer Type A (100 Mg)
CAS No.	33434-24-1
Molecular Formula	(C4H6O2·C7H16N)x
Molecular Weight	~150,000 g/mol (Typical average)
Synonyms	Ammonio Methacrylate Copolymer USP/NF; Eudragit RL 100; Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride); Amino Methacrylate Copolymer (EP); Cationic Methacrylate Copolymer; Methacrylic Acid Copolymer Type A; Ammonioalkyl Methacrylate Copolymer; Polyacrylate Dispersion RL 100
EINECS	Contact for details

Quality Control

Our Ammonio Methacrylate Copolymer Type A is manufactured and tested to meet stringent pharmaceutical standards, including compendial specifications for USP-NF and Ph. Eur. monographs. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, providing full traceability and batch-specific data.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a low-humidity environment to prevent moisture uptake, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to standard
Assay (Dry Basis)	98.0% - 102.0%
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Viscosity (Solution)	Contact for details
pH (Dispersion)	Contact for details

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