Methadone/Methaqualone/Propoxyphene

1-(4-Isopropylphenyl)-3-methylurea, 100mg

N-Methyl-N'-nitro-N-nitrosoguanidine (wetted with ca. 50% water), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 70-25-7

Metoprolol-d7 hydrochloride (isopropyl-d7),1000 µg base/mL,MeOH,1mL