Solution #2

4,4'-Butylidenebis(6-tert-butyl-m-cresol)

3-Methyl-4-nitrophenol, 100 µg/ml, Methanol, 5ml

(24R)-24-Methyl-3,5-cyclocholestane and (24R)-24-Ethyl-3,5-cyclocholestane, 200µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 36545-67-2 / '38776-72-6