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 673406 Pencycuron, 10.0 µg/ml, Acetonitrile, 10ml Price on request 18218 TCLP - Pesticide Spiking Standard Price on request 2454.8-K-IP 2,4-Dinitro-6-methylanisole, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 29027-13-2 Price on request