Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 692506 (S)-Cyclobutrifluram, 100µg/ml in Acetonitrile, 1ml Price on request 83541 1,4-Benzoquinone-DNPH (mono) Price on request 70458 Cyclohexanone, 1000µg/ml in Water, 1ml Price on request