2,2’,4,4’,6,6’-Hexachlorobiphenyl (155) Back Catalog number: 66155 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 98861 Formaldehyde-DNPH Level 4 (2ug/mL) Price on request 8680.20-100-CY Bitertanol Price on request 70028 Benzo(a)anthracene Price on request