Volatile Mix #4

Betamethasone, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 378-44-9

Oxypurinol, 100μg/ml in Acetonitrile, 5ml

3,3',4,4',5-Pentabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane