PCB No. 121, 1000μg/ml in Isooctane, 1ml Back Catalog number: 63121 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3250.18-K-IO 9-cis,11-trans-Octadecadienoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2540-56-9 Price on request X9054 4,4’-DDD Price on request X9046 2-Chlorophenol Price on request