Levonorgestrel, 100µg/mL in Acetonitrile, 1ml Back Catalog number: A14629760AL-100 Availability: In the manufacturer's stock Price on request - + Recommended EPA-8290HRCC3 Calibration Verification Solution , 1ml, nonane Price on request 16108 Chlordane Price on request DFP-CVS-B10 PCDD/PCDF/PCB Calibration Kit, 7 x 200ul, nonane Price on request