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 79608 1,6-Dimethylnaphthalene Price on request 70260 Pyridine Price on request 3484.6-100-AN Picloram Price on request