Custom Standard Back Catalog number: 50311 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 4H146 2,2',3,4',5,5'-Hexachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane Price on request 50139 IC Mix Price on request EC9605-CVS PCB Calibration Solutions for GC/MS Calibration Kit, 5 x 500ul, isooctane Price on request