Description

Witepsol CAS NO 56749-17-8 is a high-quality, semi-synthetic base material derived from vegetable oils, specifically engineered for controlled-release and solidification applications. Its consistent melting behavior and excellent mold release properties make it an indispensable excipient in the pharmaceutical and personal care industries. This product is primarily utilized by manufacturers of suppositories, pessaries, and solid cosmetic sticks who require a reliable, inert, and pharmaceutically acceptable base.

Application

• Pharmaceutical Suppository Bases: The primary application is as a lipophilic base for rectal and vaginal suppositories, offering precise melting points for controlled drug release.
• Cosmetic Stick Formulations: Used as a structuring agent in solid deodorants, lip balms, and other stick products for its smooth texture and stability.
• Pessary Manufacturing: Serves as a key excipient in the production of medicated vaginal pessaries.
• Candle and Modeling Material: Employed in specialty candles and modeling compounds due to its favorable melting and solidification characteristics.
• Laboratory and Research: Used as a standard or model lipid matrix in pharmaceutical development and dissolution testing.

Basic Information

Product Name	Witepsol
CAS No.	56749-17-8
Molecular Formula	Complex mixture of triglycerides
Molecular Weight	N/A (Mixture)
Synonyms	Witepsol base; Adeps solidus; Hard fat; Hydrogenated vegetable oil; Suppository base; Glyceryl tristearate (related); Triglycerides, hydrogenated; Semi-synthetic glycerides; Adeps neutralis
EINECS	Contact for details

Quality Control

Our Witepsol is manufactured and tested under strict quality systems to ensure it meets the requirements for pharmaceutical and cosmetic applications. We adhere to relevant pharmacopoeial standards (such as EP, USP, or JP monographs for "Hard Fat" or similar). Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters like melting point, acid value, saponification value, and peroxide value to guarantee consistency and purity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature, typically between 15°C and 25°C. Avoid exposure to excessive heat and moisture to prevent changes in physical properties.

Specification

Item	Specification
Description	White or almost white, brittle mass
Identification (IR)	Conforms
Melting Point	As per grade (e.g., 33-36°C)
Acid Value	≤ 0.5
Peroxide Value	≤ 3.0
Saponification Value	As per grade (e.g., 225-240)
Iodine Value	≤ 3.0
Water Content	≤ 0.1%

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