N-Deschloroethyl-N-Hydroxyethyl Cyclophosphamide

N-Deschloroethyl-N-Hydroxyethyl Cyclophosphamide is a structurally modified derivative of Cyclophosphamide, featuring a deschloroethyl substitution at the nitrogen and a hydroxyethyl moiety. This impurity arises from partial hydroxylation and dechlorination of the parent drug's alkylating chloroethyl group, retaining the core phosphoramide warhead and oxazaphosphorine scaffold. The hydroxyethyl functionality introduces a secondary hydroxyl group, altering its reactivity and stability profile. This compound serves as a critical HPLC reference standard for quantifying specific synthetic byproducts in Cyclophosphamide active pharmaceutical ingredient (API) batches.