CAS 26232-80-4 appears in our catalog under these names: But-2-yne-1,4-diamine dihydrochloride, But-2-yne-1,4-diamine 2HCl 95%, 1,4-Diamino-2-butyne (dihydrochloride), 97.0%, but-2-yne-1,4-diamine dihydrochloride, 97%. Offered by: Biosynth, Ambeed, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 250 mg, 50 mg, 100 mg, 25 mg, 500mg.