CAS 5059-30-3 appears in our catalog under these names: 2-Chloroindole-3-carboxaldehyde, 97% , 2–Chloro–1H–indole–3–carbaldehyde, 2-Chloro-1H-indole-3-carbaldehyde, 2-Chloro-indole-3-carbaldehyde, 97%, 2-Chloro-1h-indole-3-carbaldehyde, 97%. Offered by: Thermo Scientific (Alfa Aesar), GLPBio, Biosynth, Fluorochem, Combi-blocks. Available pack sizes: 1g, 10g, 250mg, 5g, 2g, 25g.