C27H28Br2O5S  M.W : 624.4 
 CAS : 76-59-5 
 EC : 200-971-2 Specifications :
- Transition range pH  6-7.6
- yellow to blue 
- Appearance of solution  Passes test
- Loss on drying (110 °C)  ? 3%
- Transition range (ACS)  Passes test
- Sensitivity at pH 6.0  Yellow
- Sensitivity at pH 7.6  Blue
packaging: plastic bottle, volume: 25 g, pcs per sales unit: BRTH-B0D-025