Methylarsonic acid, 100mg

3-Chloro-1,2-propandiol-2-monooleate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

gamma-HCH (BHC), 100µg/mL, Solvent-dichloromethane, Unit 1ml, # of units-1, Cas.no. 58-89-9

Nitrite (NO2-) as N