GC/MS Calibration Standard

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no.

2,4-D methyl ester

4-Methyl-1-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 10240-08-1