PCB No. 112, 10 µg/ml, 10ml

Crotamiton, 100mg

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

Ethynylestradiol (20,21-13C2,99%) 100 µg/mL in Acetonitrile, 1,2ml