WS Disinfection By-Products - Cal Check 1 Back Catalog number: 92894 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673431 Pyraclostrobin, 100 µg/ml, Acetonitrile, 5ml Price on request 1724.16-200-T 1,2,3,10b-Tetrahydrofluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 20279-21-4 Price on request 8537.16-250MG n-Butyl iso-butyl phthalate (n-Butyl 2-methylpropyl phthalate), neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 17851-53-5 Price on request