Levobupivacaine Impurity C

Levobupivacaine Impurity C is a structurally related degradation byproduct arising from the oxidative cleavage of the propylamide side chain in levobupivacaine. It retains the benzoyl moiety and tert-butylamine core but lacks the terminal propyl group, featuring a conjugated amide and aromatic ring system. This impurity exhibits distinct UV absorption maxima due to the extended conjugation and serves as a critical HPLC reference standard for quantifying degradation pathways in levobupivacaine formulations under accelerated stability testing.