Salbutamol Impurity G (Crude)

Salbutamol Impurity G (Crude) is a synthetic byproduct arising from incomplete hydroxylation during Salbutamol synthesis, characterized by a substituted aromatic ring lacking the 4-hydroxy group present in the parent compound. Its structure retains the 3-hydroxymethylphenyl moiety and the 2-tert-butylaminoethyl chain but lacks the ortho-hydroxyl substitution, resulting in altered steric and electronic properties. This impurity serves as a critical reference standard for HPLC-based quantification of process-related deviations in Salbutamol API batches.