Sildenafil-d8 (piperazine-d8),100 µg/mL,MeOH,1mL

Benzidine, 100 µg/ml, Acetonitrile, 1ml

2-Methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 109-08-0

2,2',4,4',5,6'-Hexabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane