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Name：7-bromodibenzo[f,h]quinoxaline

Chemical Formula: C16H9BrN2

Molecular Weight: 309.1660
m/z: 307.9949 (100.0%), 309.9929 (97.3%), 308.9983 (17.3%), 310.9962 (16.8%), 310.0016 (1.4%), 311.9996 (1.4%)
Elemental Analysis: C, 62.16; H, 2.93; Br, 25.85; N, 9.06