Formaldehyde-DNPH Level 2 (0.5ug/mL)

Hexachlorocyclopentadiene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 77-47-4

Dimethoate, 10 µg/mL in CY, 10mL

N-Nitrosodiisopropylamine, 100 µg/ml, Methanol,