Ethynylestradiol (20,21-13C2,99%) 100 µg/mL in Acetonitrile, 1,2ml Back Catalog number: CLM-3375-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 72723 2-Ethylbutyraldehyde Price on request 680891 D3-3-(Methylphosphinico)propionic acid, 100 µg/ml, Price on request 680244 D10-Carbophenothion, 100 µg/ml, Acetone, 1ml Price on request