Pesticides Calibration LC-MS/MS Back Catalog number: 98680 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73422 1,2-Methylenedioxybenzene Price on request 70307 o-Xylene, 1000µg/ml in MeOH, 1ml Price on request 73342 D-Xylulose Price on request