Butyltriphenylphosphonium bromide (CAS NO : 1779-51-7)

CCCC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-]

InChI=1S/C22H24P.BrH/c1-2-3-19-23(20-13-7-4-8-14-20,21-15-9-5-10-16-21)22-17-11-6-12-18-22;/h4-18H,2-3,19H2,1H3;1H/q+1;/p-1

C22H24P.Br