Calibration Standard 1 Back Catalog number: 52021A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672953 Doxycycline hyclate, 100mg Price on request 1309.28-K-IO n-Octacosane-d58, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16416-33-4 Price on request 3489.11-100-CY Profenofos Price on request