d4 C27 alpha alpha alpha (20R)-Cholestane

4-Phenyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104601-39-0

Germanium (Ge)

Irbesartan-d4 (2,3,5,6-phenyl-d4),ca. 100 µg/mL,MeOH,1mL,