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 678036 1,2,3-Trimethylbenzene, 250mg Price on request 2420.6-K-IP 2-Chlorophenol-3,4,5,6-d4,1000 µg/mL,isopropanol,1mL, Price on request 11253.14-100-AN Diflubenzuron-d4 (4-chlorophenyl-d4),100 µg/mL,acetonitrile,1mL, Price on request