EPA Method 524.2 - Revision 4.0

alpha alpha alpha (20R,23R,24R)-4 alpha,23,24-Trimethylcholestane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 146276-37-1

Phthalimide, certified, 0.5g

Perylene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 198-55-0