EPA Method 1666 Standard #1

Method 1640Mix A

Vardenafil-d5 (N-ethyl-d5), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1189685-70-8

1,2,3,4-Tetrachloro[13C12]dibenzo-p-dioxin , 1.2ml x 50ug/ml, toluene