525.2 Calibration Standard Back Catalog number: 94785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677236 Endosulfan, 250mg Price on request 1858.12-K-IO 1,4,7-Trimethylindan, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 54340-87-3 Price on request 685884 Felodipine, 100mg Price on request