Bromine, Carbon, Hydrogen, Nitrogenrdavis Pyridinium Tribromide Pyridinium Hydrogen Tribromide CAS # 39416-48-3 C5H5N·HBr·Br2 FW: 319.84 Downloads Pyridinium Tribromide Information Sheet Pyridinium Tribromide SDS US Specifications: Assay: 90 % min. Colo:r Orange to red crystals Odor: Mild Melting Point: 134 – 138 oC 50 kg drum Item # 6950-01