PCB No. 21, 100µg/ml in Isooctane, 1ml Back Catalog number: 66021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 225TCDF 2378-TCDF Specificity Mix for DB/BP/HP/Rtx/SPB -225, 1.2ml, nonane Price on request 72303 2-Chlorobenzoic acid Price on request 79115 Chlordane Price on request