CAS 89180-50-7 appears in our catalog under these names: 5，6–Dichloropyridazin–4–amine, 5,6-dichloropyridazin-4-amine, 5,6-Dichloropyridazin-4-amine 97%, 5,6-Dichloropyridazin-4-amine, 97%, 97%, 5,6-Dichloropyridazin-4-amine, 96%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 2,5g, 5g, 10g, 25g.