134564-84-4 5-Sfmtpb 5-Styryl-2-furoylmethyltriphenyl phosphonium bromide 5-Styryl-2-furoylmethytriphenylphosphonium Phosphonium, (2-oxo-2-(5-(2-phenylethenyl)-2-furonyl)ethyl)triphenyl-, bromide