5gUSP GradeC16H16N5O7S2NaPotency: 916-964ug/mgCAS# 64485-93-4MW 477.5Soluble in water.Cell culture tested Cefotaxime is an inhibitor of bacterial cell wall synthesis.An aquous solution at pH 6.3-6.2 is stable up to 3 weeks at cold 2-8℃