Heptachlor Back Catalog number: X9111 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0207.22-200-T Benzo[a]tetracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 226-88-0 Price on request 11675.12-100-IO 2,3,6-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 9826.0-K-IO Chlorinated paraffins (Cl:40%), technical mix, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request