-
Selenious asidi CAS 7783-00-8
MF: H2O3Se MW: 128.97 CAS: 7783-00-8 -
BTDA CAS: 2421-28-5 3,3',4,4'-Benzophenonetetracarboxylic dianhydride
Dzina lazogulitsa 3,3',4,4'-Benzophenonetetracarboxylic dianhydride Chidule BTDA Cas No. 2421-28-5 Maonekedwe Chiyero ≥98% Metal Ion Molecular formula