Calibration Standard Set Back Catalog number: 52032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10536.22-2.53UGX5 [13C22 15N2]-Tetracycline Price on request 1049.14-K-IO Anthracene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 120-12-7 Price on request 70452 N-Nitrosomorpholine Price on request