4-Ethylcatechol, 100 µg/ml, Methanol, 10ml

Estradiol 17-Isovalerate, 25mg

Daily Quality Control Standard (with Internal Standard) 15 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 11 Ethylbenzene

S-Metolachlor Metabolite CGA 368208, 50mg