Calibration Standard Set Back Catalog number: 53032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673272 Ethiofencarb-sulfone, 10.0 µg/ml, Acetonitrile, Price on request 680614 Dibutyl maleate, 250mg Price on request D721000 Duloxetine Hydrochloride, 50mg Price on request