CAS 139262-76-3 appears in our catalog under these names: H2L5186303, H2L5186303/ 97.23% (existing batch purity), H2L5186303 97%, (2Z,2'Z)-4,4'-(((1,3-Phenylenebis(oxy))bis(4,1-phenylene))bis(azanediyl))bis(4-oxobut-2-enoic acid), 97%, 97%, H2L5186303, 98.24%. Offered by: GLPBio, TargetMol, Ambeed, Chemat, MedChemExpress. Available pack sizes: 10mg, 25mg, 5mg, 10mM (in 1ml dmso), 1mg, 50mg, 100mg, 500mg.