Levonorgestrel, 100µg/mL in Acetonitrile, 1ml Back Catalog number: A14629760AL-100 Availability: In the manufacturer's stock Price on request - + Recommended 675397 Chlorpyrifos, 100 µg/ml, Acetonitrile, 5ml Price on request EPA-8290HRCC3 Calibration Verification Solution , 1ml, nonane Price on request 674980 D3-Metoxuron-monomethyl, 100 µg/ml, Acetonitrile, Price on request