O=C1OC(=O)c2c(Br)c(Br)c(Br)c(Br)c21
Name: tetrabromophthalic anhydride
SMILES: O=C1OC(=O)c2c(Br)c(Br)c(Br)c(Br)c21
Molecular formula: C8Br4O3
Molecular weight: 459.66
Fetching from PubChem (queue #1)