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 3170.22-K-IO Methyl heneicosanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6064-90-0 Price on request 681087 2-n-Nonylphenol, 100 µg/ml, Acetone, 1ml Price on request 11371.8-500-AN Phenylmercury acetate,500µg/mL,acetonitrile,1mL, Price on request