Tadalafil, certified, 0.1g

4-n-Nonylphenol-2,3,5,6-d4-OD, 1000µg/mL, Solvent-acetone, Unit 5mL, # of units-1, Cas.no. 358730-95-7

2,6-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 1141-38-4

L-Tryptophan