C21H14Br4O5S  M.W : 698.04 
 CAS : 76-60-8 
 EC : 200-972-8 
P : P102+P202 Specifications :
- Transition range pH  3.6-5.4
 - yellow to blue 
 - Transition range (ACS)  Passes test
 - Sensitivity  Passes test
 
packaging: glass bottle, volume: 1 g, pcs per sales unit: BRCR-G0D-001