25-Hydroxyvitamin D2-d6, 50µg/ml in MeOH, 1ml

Paraxanthine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 611-59-6

Methyltin mercaptide (technical mixture), 100mg

Tri-n-butyl phosphate-d27, 1.2ml x 50ug/ml, toluene