2-[2-Acetylamino-4-[N,N-bis(2-ethoxycarbonyloxyethyl)amino]-5-methoxyphenylazo]-5-nitrothiazole

ethyl 5-[5-acetamido-2-methoxy-4-[(5-nitrothiazol-2-yl)azo]phenyl]-9-oxo-2,8,10-trioxa-5-azadodecanoate