Cyanazine, 100 µg/ml, Acetonitrile, 5ml

n-Tricosane, ?13C: -26.71, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 638-67-5

17 alpha(H),21ß(H)-(22RS)-Trishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 54340-13-5

Pentachloro[13C6]phenol, 1.2ml x 100ug/ml, isooctane