The Complete List of Suppliers for Xanthylium,9-[2-carboxy-5-[[(9R)-6- hydroxy-6-oxido-12-oxo-9-[(1-oxohexadecyl)- oxy]-1-thioxo-5,7,11-trioxa-2-aza-6- phosphaheptacos-1-yl]amino]phenyl]-3,6-bis- (dimethylamino)-,inner salt,compd. with N,N-diethylethanamine (1:1)