1,2-Tetradecanediol

1,2-Tetradecanediol (CAS 21129-09-9), also known as Tetradecane-1,2-diol, Myristyl Glycol, and NSC 71507, is a long-chain aliphatic diol derived from myristic acid. It carries no assigned E-code. Its C14 carbon backbone positions it between shorter glycols and heavier fatty alcohols in terms of polarity and skin compatibility.

In personal care formulations, it functions as a humectant by attracting and retaining moisture within the stratum corneum, while its amphiphilic structure supports emulsification of oil-in-water systems without requiring high concentrations of additional co-emulsifiers. In pharmaceutical topical preparations, it serves as a carrier that enhances active ingredient penetration across lipid-rich skin barriers.

1,2-Tetradecanediol is supplied as a powder or crystalline solid and falls under HS code 2905.39.9000. It is subject to REACH registration requirements for EU import and use. Buyers should confirm grade specifications and batch documentation directly with the supplier to meet formulation or regulatory requirements.