Caerulein (~90%)

Caerulein; Caerulein (Xenopus amieti); Caerulein 1.1; Caerulein 1.1 (Litoria citropa); Cerulein; Ceruletide; FI 6934; L-Phenylalaninamide, 5-oxo-L-prolyl-L-glutaminyl-L-α-aspartyl-O-sulfo-L-tyrosyl-L-threonylglycyl-L-tryptophyl-L-methionyl-L-α-aspartyl-

CSCC[C@H](NC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)CNC(=O)[C@@H](NC(=O)[C@H](Cc3ccc(OS(=O)(=O)O)cc3)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@@H]4CCC(=O)N4)[C@@H](C)O)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](Cc5ccccc5)C(=O)N

InChI=1S/C58H73N13O21S2/c1-29(72)49(71-57(87)40(23-31-12-14-33(15-13-31)92-94(89,90)91)68-56(86)43(26-48(78)79)69-52(82)37(16-18-44(59)73)65-51(81)36-17-19-45(74)63-36)58(88)62-28-46(75)64-41(24-32-27-61-35-11-7-6-10-34(32)35)54(84)66-38(20-21-93-2)53(83)70-42(25-47(76)77)55(85)67-39(50(60)80)22-30-8-4-3-5-9-30/h3-15,27,29,36-43,49,61,72H,16-26,28H2,1-2H3,(H2,59,73)(H2,60,80)(H,62,88)(H,63,74)(H,64,75)(H,65,81)(H,66,84)(H,67,85)(H,68,86)(H,69,82)(H,70,83)(H,71,87)(H,76,77)(H,78,79)(H,89,90,91)/t29-,36+,37+,38+,39+,40+,41+,42+,43+,49+/m1/s1

IUPAC name: (3S)-3-[[(2S)-5-amino-5-oxo-2-[[(2S)-5-oxopyrrolidine-2-carbonyl]amino]pentanoyl]amino]-4-[[(2S)-1-[[(2S,3R)-1-[[2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-3-carboxy-1-oxopropan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxo-3-(4-sulfooxyphenyl)propan-2-yl]amino]-4-oxobutanoic acid