CAS 135980-66-4 appears in our catalog under these names: 4-Methylsulfonyl-N-N-butyl-1,8-naphthalimide, MSBN/ 98.57% (existing batch purity), MSBN, MSBN, 98.51%. Offered by: Biosynth, TargetMol, GLPBio, Chemat, MedChemExpress. Available pack sizes: 50mg, 25mg, 100mg, 2mg, 5mg, 10mg, 200mg, 1mg.