CAS 902837-55-2 appears in our catalog under these names: Ethyl 2-chloro-5-pyridylglyoxylate, 97% , Ethyl 6-chloro-3-pyridylglyoxylate, 97%, Ethyl 6-chloro-3-pyridylglyoxylate. Offered by: Thermo Scientific (Alfa Aesar), Combi-blocks, Biosynth. Available pack sizes: 1g, 250mg, 5g, 10g.