2,2',3,3',4,6,6'-Heptachlorobiphenyl Back Catalog number: 66176 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59098 Sodium iodide (NaI) Price on request 90291 Perylene-d12 Price on request 12040.22-100MG Vitamin A acetate,neat,neat,100mg, Price on request