QC Check Sample Back Catalog number: 59250 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA14283710AC Imidacloprid D4, 100μg/ml in Acetone, 1ml Price on request C2220 Clarithromycin, >98%, 1g Price on request 59418 Custom Calibration Standard Price on request