Heptachlor epoxide Back Catalog number: 72764 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 98517 BTEX (10 µg/mL) Price on request 678825 Novaluron, 25mg Price on request 2499.13-50-IO 3-Methyldibenzothiophene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16587-52-3 Price on request