Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml Back Catalog number: 70193 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended R250202 all-trans-Retinoic Acid-d5 (major), 1mg Price on request 62004 Acid Extractables Price on request 3499.22-100 Resmethrin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 10453-86-8 Price on request