n-Tetracontane, certified, 0.1g

EPA Method 1664 - Oil & Grease (Sonicate)

5 alpha(H)-Androstane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 438-22-2

Monochloromethane, Please inquire, gas cylinder, Solvent-, Unit , # of units-, Cas.no. 74-87-3