Diflubenzuron, 10.0 µg/ml, Acetonitrile, 10ml

2,2',4,4',6-Pentabromo-6'-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

2,2',3,4',5,5',6-Heptachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Ambroxol EP Impurity B Hydrochloride, 100mg