derives from (81)Br labeled 3'-bromotyrosine 242.9717864990234375 243.0800018310546875 79.9084625244140625 79.910003662109375 MOD:00996 C 9 H 8 N 1 O 2 (81)Br 1 modification from DeltaMass PSI-MOD none H -1 (81)Br 1 From DeltaMass: Average Mass: 80 artifact Y monobrominated tyrosine 3'-bromo-L-tyrosine