Description

Ethox Co 30 is a high-purity, non-ionic surfactant belonging to the polyoxyethylene castor oil derivative family. This versatile chemical is valued for its excellent emulsifying, solubilizing, and stabilizing properties in demanding formulations. It is essential for manufacturers in the pharmaceutical, cosmetic, and specialty chemical industries seeking reliable performance and consistent quality. The product is supplied under the identifier CAS No. 9038-23-7.

Application

• Pharmaceutical Solubilizer & Emulsifier: A key excipient for enhancing the solubility and bioavailability of poorly water-soluble active pharmaceutical ingredients (APIs) in injectable and oral formulations.
• Cosmetic & Personal Care Formulations: Used as a primary emulsifier and stabilizer in creams, lotions, and ointments, providing smooth texture and formulation stability.
• Agricultural Adjuvants: Functions as a surfactant and emulsifier in pesticide and herbicide formulations to improve spreading, wetting, and overall efficacy.
• Industrial Emulsions: Serves as an effective emulsifying agent in the production of lubricants, textile processing aids, and polymer emulsions.
• Food-Grade Applications (where specified): Employed as an emulsifier in certain food additive preparations, subject to compliance with appropriate purity grades like FCC.
• Research & Laboratory Use: Utilized in biochemical and diagnostic reagent preparations as a non-denaturing detergent and solubilizing agent.

Basic Information

Product Name	Ethox Co 30
CAS No.	9038-23-7
Molecular Formula	Mixture (Polyoxyethylene derivative)
Molecular Weight	Variable (Polymer)
Synonyms	Polyoxyethylene (30) Castor Oil; PEG-30 Castor Oil; Cremophor® EL; Kolliphor® EL; Polyoxyl 35 Castor Oil; Hydrogenated Polyoxyethylene Castor Oil Derivative; Oxirane, methyl-, polymer with 1,2,3-propanetriol tri(9Z)-9-octadecenoate (30 mol EO average molar ratio); Nonionic Surfactant CO-30
EINECS	Contact for details

Quality Control

Our Ethox Co 30 is manufactured under a strict quality management system. Each batch is tested to ensure it meets stringent specifications for identity, purity, and performance. We can supply material compliant with relevant standards such as USP-NF, Ph. Eur., and FCC for applicable grades. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Pale yellow to yellow viscous liquid
Identification (IR)	Conforms
Assay (HLB Value)	12 - 14
Water Content (KF)	≤ 2.0 %
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	65 - 80 mg KOH/g
Saponification Value	65 - 70 mg KOH/g
Heavy Metals (as Pb)	≤ 10 ppm

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