2,3,4,4',5-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

D-Isoascorbic acid, 250mg

Benzene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 71-43-2

1-(3-Chloro-4-methylphenyl)-3-methylurea, 100µg/ml in Acetonitrile, 5ml