Custom Calibration Standard Back Catalog number: 50254 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0452.3-150-CYX10 GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. Price on request 690172 m-Phenylenediamine, 100mg Price on request 11279.20-100-AN (+/-)-Pyriproxyfen-d4 (pyridyl-d4),100 µg/mL,acetonitrile,1mL, Price on request