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 S-4269A-10ML 3 Fluorinated Internal Standard Mix 3 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Fluorobenzene 39.7 1-Fluoronaphthalene 20.9 4-Ethyl- Price on request 96016 AK101GRO C6-C10 Price on request 15900-3350-100AN5 Metribuzin, 100µg/ml in Acetonitrile, 5ml Price on request