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 50309 Metals Mix Price on request 70085 4-Chlorophenyl phenyl ether Price on request 10298.12-10MG Octabromodiphenyl ether, techn. Price on request