CLP Calibration Std. IV Back Catalog number: 53152 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2700.8-100MG Isocaffeine (1,3,9-Trimethylxanthine),neat,neat,100mg, Price on request 95413 2,4-Dinitrotoluene Price on request L-PFPES Sodium perfluoro-1-pentanesulfonate, 1.2ml x 50ug/ml, methanol Price on request