Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml Back Catalog number: 70193 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 3290.21-K-IO Methyl 5-cis-eicosenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20839-34-3 Price on request 1527.12-100-IO Dibenzo-p-dioxin-d8, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 69699-83-8 Price on request 52127 WS Amp 1 Trace Elements Price on request