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Sodium selenite CAS 10102-18-8
MF: Na2O3Se MW: 172.94 CAS: 10102-18-8 -
BTDA CAS: 2421-28-5 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride
Product Name 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride Abbreviation BTDA Cas No. 2421-28-5 Appearance Purity ≥98% Metal Ion Molecular formula