Calibration Standard Set Back Catalog number: 52042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3444.6-100-AN Methidathion, 100μg/mL in Acetonitrile, 1ml Price on request 8743.18-100-T 4-Chloroterphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request 11292.18-100-AN Triphenyltin hydroxide,100 µg/mL,acetonitrile,1mL, Price on request