2,2',3,4',5,6,6'-Heptachlorobiphenyl (188) Back Catalog number: 66188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93901 Volatile Standard Price on request 93175 Base/Neutral Standard Price on request 66098 2,2',3',4,6-Pentachlorobiphenyl (98) Price on request