Heptachlor epoxide Back Catalog number: 72764 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 20013 EPA Method 8260 - Purgeable Internal Standard Price on request 2105.8-100-ME 1,5-Bis-(1-methylethyl)-biguanide HCl, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 45095-69-0 Price on request 62211 Dichlorofluoromethane Price on request