PCB Mix 25 ppb Back Catalog number: 98626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79485 Methyl 9,12-octadecadienoate (C18:2n-6) Price on request 676256 1,2-Benzisothiazol-3(2H)-one, 100mg Price on request 676711 1,4-Diaminobutane, 250mg Price on request