Sodium p-n-tridecylbenzenesulfonate, 100 µg/ml, M

3,3',4,4'-Tetrabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Amoxicillin Dimer Sodium Salt (>90%), 1mg

trans-Nonachlor, 10 µg/ml, Cyclohexane, 10ml