2-Bromo-5-nitrothiophene with CAS number of 13195-50-1 is also called for Labotest-bb lt00455100 ; 2-Bromo-5-nitrothiophene ; 2-Bromo-5-nitrothiophene ,98% ; 2-Nitro-5-bromothiophene ; 5-Nitro-2-bromothiophene ; 2-Bromo-5-Nitrothiophene 99% .