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 50139 IC Mix Price on request 50312 Custom Standard Price on request XA11790000AL Cyanazine, 100μg/mL in Acetonitrile, 1ml Price on request