CAS 101-63-3 appears in our catalog under these names: 4,4'–Dinitrodiphenyl Ether, 4,4'-Dinitrodiphenyl Ether, >99.0%(GC), 4,4-DINITRODIPHENYL ETHER, 1,1′-Oxybis[4-nitrobenzene], 98%, 98%, 1-Nitro-4-(4-nitrophenoxy)benzene, 98%. Offered by: GLPBio, TCI, Sigma-Aldrich, Chemat, Fluorochem. Available pack sizes: 100g, 10g, 25g, 500g, 1g, 5g.