Description

Polyvinylacetate Phthalate Polymer is a synthetic polymer widely recognized for its enteric coating properties. This compound is critical for enabling targeted drug release, protecting active ingredients from the acidic environment of the stomach. It is an essential excipient for the pharmaceutical industry, particularly in the formulation of oral solid dosage forms such as tablets and capsules.

Application

• Enteric Coating for Pharmaceuticals: Primary application for tablets and capsules to ensure drug release in the intestinal tract.
• Controlled-Release Drug Delivery Systems: Used as a functional polymer matrix to modulate the release profile of active pharmaceutical ingredients (APIs).
• Gastro-resistant Formulations: Protects acid-labile drugs from degradation in the stomach, enhancing bioavailability.
• Specialty Excipient in Nutraceuticals: Applied in dietary supplement coatings for targeted nutrient delivery.
• Film Coating Agent: Provides a stable, protective barrier for solid oral dosage forms, improving stability and appearance.
• Research & Development: Utilized in pharmaceutical R&D for developing novel drug delivery platforms and testing dissolution profiles.

Basic Information

Product Name	Polyvinylacetate Phthalate Polymer
CAS No.	34481-48-6
Molecular Formula	(C16H18O8)n
Molecular Weight	~ (346.31)n g/mol (Polymer)
Synonyms	PVAP; Polyvinyl Acetate Phthalate; 1,2-Benzenedicarboxylic acid, polymer with ethenyl acetate; Vinyl acetate polymer with phthalic anhydride; Poly(vinyl acetate phthalate); Eudragit® competitor polymer; Enteric coating polymer; Phthalated polyvinyl acetate
EINECS	Contact for details

Quality Control

Our Polyvinylacetate Phthalate Polymer is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets pharmaceutical-grade specifications, with parameters aligned to industry standards for polymer excipients. A comprehensive Certificate of Analysis (COA) detailing identity, purity, viscosity, and phthaloyl content is provided with every shipment to guarantee batch-to-batch consistency and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white free-flowing powder
Identification (IR)	Conforms
Viscosity (Solution)	Contact for details
Phthaloyl Content	Contact for details
Residual Solvents	Meets ICH guidelines
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 10 ppm
Microbial Limits	Meets USP <61> and <62>

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