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 95865 Deuterated PAH Standard, 100µg/ml in IO, 1ml Price on request 35141 Aldicarb Price on request 33264 Tribromoacetic acid Price on request