CAS 100538-31-6 appears in our catalog under these names: 4,4'–Disulfanediyldibenzaldehyde, 4,4'-Disulfanediyldibenzaldehyde 95%, 4,4'-Disulfanediyldibenzaldehyde, 95%, 95%, 4,4'-Disulfanediyldibenzaldehyde, 95%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 5g.