Description

Cremophor EL is a non-ionic surfactant and solubilizer derived from castor oil and ethylene oxide, widely recognized for its excellent emulsifying and stabilizing properties. Its primary value lies in its ability to solubilize poorly water-soluble active ingredients, making it a critical excipient in pharmaceutical and cosmetic formulations. This product is essential for manufacturers in the pharmaceutical, cosmetic, and agrochemical industries seeking reliable and high-quality solubilization agents for injectable, topical, and oral products.

Application

• Pharmaceutical Solubilizer: Key excipient for formulating injectable and oral drugs with poor aqueous solubility, including paclitaxel and other chemotherapeutic agents.
• Cosmetic & Personal Care: Used in creams, lotions, and ointments to emulsify oils and fragrances, enhancing product stability and texture.
• Agrochemical Formulations: Acts as an emulsifier and wetting agent in pesticide and herbicide concentrates to improve sprayability and efficacy.
• Vitamin & Nutritional Supplements: Facilitates the solubilization of fat-soluble vitamins (A, D, E, K) in aqueous-based liquid supplements.
• Industrial Applications: Serves as an emulsifier and dispersant in textile processing, leather treatment, and specialty chemical synthesis.

Basic Information

Product Name	Cremophor EL
CAS No.	63393-92-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyoxyl 35 Castor Oil; PEG-35 Castor Oil; Macrogolglyceroli ricinoleas 35; Kolliphor EL; Polyoxyethylene (35) castor oil; Ethoxylated castor oil; Oxirane, methyl-, polymer with 1,2,3-propanetriol tri(9Z)-9-octadecenoate (35 mol EO average molar ratio); Emalex C-35
EINECS	Contact for details

Quality Control

Our Cremophor EL is manufactured and tested under a rigorous quality management system. We offer grades suitable for various applications, with specifications that can align with industry standards such as USP/NF, Ph. Eur., and DAB. A comprehensive Certificate of Analysis (COA) is provided with each batch, detailing parameters like saponification value, hydroxyl value, water content, and peroxide value to ensure purity, safety, and performance consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Avoid exposure to excessive heat and moisture to maintain product stability.

Specification

Item	Specification
Appearance	Pale yellow to yellow viscous liquid
Identification (IR)	Conforms
Hydroxyl Value	65 - 78 mg KOH/g
Saponification Value	65 - 70 mg KOH/g
Acid Value	≤ 2.0 mg KOH/g
Water Content (KF)	≤ 2.0 %
Peroxide Value	≤ 5.0 meq/kg
Ethylene Oxide	≤ 1 ppm
Heavy Metals	≤ 10 ppm

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