Cetyl Phosphate
Cetyl Phosphate (CAS 3539-43-3), also called hexadecyl dihydrogen phosphate, is a phosphoric acid monoester. It comprises a hydrophobic, straight-chain C16 alkyl group linked through oxygen to a polar phosphate head. This amphiphilic structure is consistent with its use as an anionic surfactant and emulsifying ingredient.
Reported formulation roles include helping emulsify and stabilize oil-and-water systems and contributing to viscosity or texture in selected personal-care products, such as creams, lotions, and gels. These are ingredient functions, not evidence of therapeutic, nutritional, or regulatory-approval claims for this product. Cetyl phosphate should not be treated as interchangeable with potassium, sodium, or amine-neutralized cetyl phosphate: neutralization and counterion can alter solubility, pH behavior, and performance. Suitability depends on the exact grade and formulation testing.
– Use as an emulsifying surfactant in selected topical personal-care formulations, including creams, lotions, and gels, where it can help form or stabilize oil-and-water systems. Confirm the supplied grade and chemical form; evaluate emulsion stability and compatibility with the intended oils, emollients, and other ingredients. This is a formulation function, not a skin-treatment or efficacy claim.
– In formulation development, assess whether cetyl phosphate contributes useful viscosity, texture, or stability in a given system. Performance depends on formula composition and whether the material is the parent acid or a neutralized derivative. Validate finished-product properties, pH, and storage stability against the product specification rather than assuming results from another cetyl phosphate salt.
– Suitable for laboratory or industrial research and development on phosphate-based surfactants and emulsifier systems, including comparative evaluation of the parent acid against its neutralized forms. Document identity, assay, and grade; keep conclusions specific to the tested material. Do not infer authorization for a cosmetic application or claims of sun protection or therapeutic benefit from its presence as an ingredient.
Product Name: Cetyl Phosphate
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