Heptachlor-exo-epoxide (Iso B) 10µg/mL in CY, 10ml

(+/-)-Atenolol-d7 (isopropyl-d7), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 29122-68-7

Phenanthrene-13C6,100 µg/mL,n-nonane,1mL

D3-4-Aminoantipyrine, 10mg