CAS 3441-14-3 appears in our catalog under these names: Direct red 23, DIRECT RED 23 (C.I. 29160), 3-((4-Acetamidophenyl)diazenyl)-4-hydroxy-7-(3-(5-hydroxy-6-(phenyldiazenyl)-7-sulfonaphthalen-2-yl)ureido)naphthalene-2-sulfonic acid, sodium salt, Dye content 30%,RG, Dye content 30%,RG, Direct Red 23. Offered by: GLPBio, Sigma-Aldrich, Chemat, MedChemExpress. Available pack sizes: 250g, 50g, 5g, 25g, 100g, 500g, 10g, 2.5kg.