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 679107 4,4'-DDD, 10.0 µg/ml, Cyclohexane, 10ml Price on request 1421.10-1G 2-sec-Butylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 89-72-5 Price on request 0284.22-200-T 2-Phenylfluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 4914-78-7 Price on request