Calibration Standard Mix 4 Back Catalog number: 52013A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3890.4-100-ME Methional, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-, Cas.no. 3268-49-3 Price on request 680166 Butyric acid, 1ml Price on request MHXCHLOR (13C10)Chlordene, 1.2mL x 100ug/mL, nonane Price on request