Methacrylic acid-methyl ester, certified, 0.25g

Dimethenamid,100 µg/mL,MeOH,1mL,

1-Chloropyrene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 34244-14-9

Heptachlor-exo-epoxide (Iso B) 10µg/mL in CY, 10ml