Para Bromo Toluene is known as p-bromo-, 4-Methylbromobenzene, Benzene, 1-bromo-4-methyl-, 106-38-7, p-Tolyl bromide, p-Bromotoluene, 1-Bromo-4-methylbenzene, Toluene with Molecular Formula of C7H7Br and Molecular Weight of 171.03448. It is manufactured using diazotization of p-toluidine that is followed through treatment with potassium bromide, cuprous bromide and hydrobromic acid. 

Available in crystals form, it has Boiling Point of 184.5°C at 760 mm Hg, Melting Point of 28.5°C and Density/Specific Gravity of 1.3995 @ 35°C. Further, it has Heat of Vaporization of 10,076.2 gcal/gmole and solubility in chloroform, water (of 110 ppm at 25°C), ethanol, acetone and ether.