Description

Choline Octadecyl Phosphate is an organophosphate compound that functions as a versatile surfactant and emulsifying agent. Its molecular structure, combining a choline head group with a long-chain octadecyl phosphate tail, provides unique amphiphilic properties critical for stabilizing complex formulations. This compound is essential for manufacturers in the pharmaceutical, cosmetic, and agrochemical industries seeking to enhance the solubility, bioavailability, and stability of active ingredients. Its role as a key excipient and formulation aid makes it a valuable component in advanced delivery systems.

Application

• Pharmaceutical excipient for enhancing drug solubility and permeability in topical and transdermal formulations.
• Primary emulsifier and stabilizer in cosmetic creams, lotions, and sunscreens.
• Key component in agrochemical formulations, improving the dispersion and adherence of pesticides and herbicides.
• Raw material for synthesizing specialized phospholipids and lipid-based nanoparticles (e.g., liposomes, solid lipid nanoparticles).
• Additive in industrial lubricants and metalworking fluids for its anti-corrosion and surface-active properties.
• Biochemical research reagent for studying membrane biology and lipid metabolism.

Basic Information

Product Name	Choline Octadecyl Phosphate
CAS No.	65956-63-0
Molecular Formula	C23H52NO4P
Molecular Weight	437.64 g/mol
Synonyms	Octadecylphosphocholine; Stearylphosphocholine; OPC; 1-Octadecanol, 2-(trimethylammonio)ethyl phosphate; Choline stearyl phosphate; Phosphocholine, octadecyl ester; N,N,N-Trimethyl-2-[(octadecyloxy)phosphoryl]oxy]ethanaminium; Lipid 18:0 PC analog
EINECS	Contact for details

Quality Control

Our Choline Octadecyl Phosphate is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality assurance includes rigorous testing for identity, assay, and impurity profiles using advanced analytical techniques. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment. We support compliance with cGMP and ISO standards for pharmaceutical and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 10 ppm
Residual Solvents	Meets ICH guidelines
pH (1% solution)	6.0 - 8.0

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