PARTECK® COAT (Polyvinyl alcohol)

EMPROVE® Essential, Ph. Eur., ChP, JPE, USP

PVA, Parteck Polyvinyl alcohol, PVOH
Linear Formula:
CAS Number:
MDL number:

Quality Level


Ph. Eur.

product line

EMPROVE® Essential


5-6.5 (4% in H2O)


160-240 °C

bulk density

400‑670 kg/m3

shipped in


storage temp.




InChI key


General description

With formulation challenges in mind, we have used particle engineering technologies to develop functional excipients specifically for solid oral dosage forms. The products in our Parteck® portfolio feature unique particle properties tailored for excellent performance in tableting processes, for specific drug delivery technologies, or for solubility enhancement.
As part of our EMPROVE® Program, our raw materials are offered with extensive documentation facilitating compliance of your pharma and biopharma product, full supply chain transparency and risk mitigation. Our SAFC® portfolio of high-quality products for biopharmaceutical and pharmaceutical formulation and production withstands strict quality control procedures and is produced according to applicable cGMP guidelines.


Parteck® COAT excipient is a particle-engineered polyvinyl alcohol (PVA) with a unique structure specifically designed for immediate release film coating application. Due to its optimized particle size, it helps to reduce dissolving times when preparing the coating solution, thus increasing process efficiency. Parteck® COAT excipient can be combined with a variety of supporting excipients such as plasticizers, anti-tacking agents and pigments – all available in our portfolio – to give you full flexibility in designing just the right coating for your need, and in the right timeframe. It is also very well-suited for coating ODT formulations using the Parteck® ODT orally disintegrating excipient system.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany
PARTECK is a registered trademark of Merck KGaA, Darmstadt, Germany
SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany
Certificate of Analysis
Certificate of Origin

What is the Emprove® Program?

The Emprove® Program is a system providing comprehensive and thorough documentation of our filters and single-use components, pharma raw materials, and starting materials.

Material Qualification Dossier

Free of charge - Sign in to download

Quality Management Dossier

Available by subscription or for a fee

Operational Excellence Dossier

Available by subscription or for a fee

Learn more about the benefits an Emprove® Program subscription can provide
Why are these documents unavailable?
Emprove® Dossiers contain information intended to support the registration process and risk assessment activities of pharmaceutical producers and contain confidential information. Please contact us if you would like access.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.