CAS 139096-37-0 appears in our catalog under these names: POLY(DISPERSE RED 1 METHACRYLATE), 2-Propenoic acid, 2-methyl-, 2-[ethyl[4-[2-(4-nitrophenyl)diazenyl]phenyl]amino]ethyl ester, homopolymer. Offered by: Sigma-Aldrich, Chemat. Available pack sizes: 500MG.