Parteck® SI by MilliporeSigma, a business of Merck KGaA Darmstadt Germany

Unique functional particles for excellent tabletting properties Parteck® SI, Merck’s outstanding, directly compressible sorbitol, is available in a variety of particle sizes and qualities for virtually any application you can imagine.The unique particle structure of Parteck® SI – loosely packed, needle-like crystals – gives it some quite distinctive physical properties making Parteck® SI the perfect excipient for combining many ingredients into one elegant and robust tablet formulation.Parteck®... Read more


Parteck® SI by MilliporeSigma, a business of Merck KGaA Darmstadt Germany product image
Parteck® SI
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Unique functional particles for excellent tabletting properties

Parteck® SI, Merck’s outstanding, directly compressible sorbitol, is available in a variety of particle sizes and qualities for virtually any application you can imagine.

The unique particle structure of Parteck® SI – loosely packed, needle-like crystals – gives it some quite distinctive physical properties making Parteck® SI the perfect excipient for combining many ingredients into one elegant and robust tablet formulation.

Parteck® SI belongs to the Parteck® product family of excipients with unique particle properties developed using the Functional Particle Engineering® concept. This concept comprises a number of proprietary technologies which allows specialty excipients with outstanding functionalities especially for the design of solid dosage forms.

In addition to its high dilution potential, Merck’s spray-dried, directly compressible Parteck® SI demonstrates excellent compression properties compared to standard crystallised sorbitol. Thus, tabletting with Parteck® SI requires lower compression forces and reduces stress on the tabletting equipment while reliably delivering the tablet hardness you want. Using Parteck® SI, formulators can even work with active ingredients that themselves have little or no compressibility without compromising tablet quality.


Parteck® SI Benefits:

  • Excellent direct compressibility
  • High dilution and adsorption capacity
  • Low hygroscopicity of Parteck® SI tablets
  • EMPROVE® documentation