Calibration Standard 1 Back Catalog number: 52021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8539.18-K-IO n-Pentyl iso-pentyl phthalate (n-Pentyl 3-methlybutyl phthalate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 776297-69-9 Price on request M3-MEL [13C3]-Melamine, 1.2ml x 100ug/ml, water Price on request 2275.16-100MG Perfluorokerosene (bp. 210-240) for Mass spectrometry, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request