Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended L20030300IO PCB-Mix 3, 10 µg/mL in Isooctane, 10ml Price on request 3243.22-K-IO 13-cis-Docosenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-86-7 Price on request 71629 2,4-D n-butyl ester Price on request