Description

C18E8 CAS NO 13149-87-6 is a high-purity, non-ionic surfactant belonging to the polyoxyethylene alkyl ether family, specifically octaethylene glycol monooctadecyl ether. This compound is valued for its excellent emulsifying, wetting, and solubilizing properties, making it a critical component in formulations requiring precise control over surface activity. It is primarily sought after by researchers and manufacturers in the life sciences, pharmaceutical development, and specialty chemical synthesis sectors for its consistent performance and high purity.

Application

• Biochemical Research & Membrane Studies: A key reagent for solubilizing membrane proteins and studying lipid bilayer dynamics.
• Pharmaceutical Formulation: Used as a non-ionic surfactant in drug delivery systems, including micellar carriers and emulsion stabilization.
• Cell Culture & Biotechnology: Employed in lysis buffers and as a mild detergent for isolating cellular components without denaturing proteins.
• Analytical Chemistry: Serves as a mobile phase modifier in chromatographic techniques and a micellar agent in capillary electrophoresis.
• Specialty Chemical Synthesis: Acts as an intermediate or emulsifier in the synthesis of advanced polymers and functional materials.
• Cosmetic & Personal Care: Utilized in high-end formulations for its mildness and ability to stabilize complex emulsions.

Basic Information

Product Name	C18E8
CAS No.	13149-87-6
Molecular Formula	C34H70O9
Molecular Weight	622.92 g/mol
Synonyms	Octaethylene glycol monooctadecyl ether; Polyoxyethylene (8) stearyl ether; Steareth-8; PEG-8 stearyl ether; α-Octadecyl-ω-hydroxy-octa(oxyethylene); Octadecanol, ethoxylated (8 EO); Brij S20 (related series); POE (8) stearyl alcohol ether
EINECS	236-123-3

Quality Control

Our C18E8 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research and critical applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters. We adhere to cGMP principles where applicable, and our quality protocols are designed to meet the stringent requirements of pharmaceutical and biochemical customers.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Cloud Point (1% aq.)	Contact for details
HLB Value	~12.4
Heavy Metals (as Pb)	≤ 10 ppm

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