2,2',3,4',5',6-Hexachlorobiphenyl (149) Back Catalog number: 63149 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59045 Spike Solution #1 Price on request 96925 Coronene Price on request 72251 Sodium cyclamate, 1000µg/ml in Water, 1ml Price on request