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 2576.27-100-T 3-Methylphenanthro[3,4-c]phenanthrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 83844-21-7 Price on request 8383.6-3K-ME n-Butyl acetate, 3000µg/mL, Solvent-Methanol, Unit 1mL, # of units-1, Cas.no. 123-86-4 Price on request 79555 Dimethoxy ethyl phthalate Price on request