1,2-Bis(4-(n-butyl)phenylazo-4'-phenylbutyroyl)phosphatidylcholine 112791-47-6 3,5,9-Trioxa-4-phosphatridecan-1-aminium, 13-(4-((4-butylphenyl)azo)phenyl)-7-(4-(4-((4-butylphenyl)azo)phenyl)-1-oxobutoxy)-4-hydroxy-N,N,N-trimethyl-10-oxo-, hydroxide, inner salt, 4-oxide, (R)- Bis-azo PC