Compstatin TFA

• CAT Number: I044763
• Molecular Formula: C68H100F3N23O19S2
• Purity: ≥95%
• IUPAC Name: 2-[(4R,7S,10S,13S,19S,22S,25S,28S,31S,34R)-4-[[(2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl]carbamoyl]-34-[[(2S,3S)-2-amino-3-methylpentanoyl]amino]-25-(3-amino-3-oxopropyl)-7-[3-(diaminomethylideneamino)propyl]-10,13-bis(1H-imidazol-5-ylmethyl)-19-(1H-indol-3-ylmethyl)-6,9,12,15,18,21,24,27,30,33-decaoxo-28,31-di(propan-2-yl)-1,2-dithia-5,8,11,14,17,20,23,26,29,32-decazacyclopentatriacont-22-yl]acetic acid;methane
• InChI: InChI=1S/C66H99N23O17S2.CH4/c1-8-32(6)50(68)63(104)86-46-27-108-107-26-45(62(103)89-53(33(7)90)54(69)95)85-56(97)39(14-11-17-74-66(70)71)80-59(100)43(20-36-24-73-29-78-36)83-58(99)42(19-35-23-72-28-77-35)79-48(92)25-76-55(96)41(18-34-22-75-38-13-10-9-12-37(34)38)82-60(101)44(21-49(93)94)84-57(98)40(15-16-47(67)91)81-64(105)51(30(2)3)88-65(106)52(31(4)5)87-61(46)102;/h9-10,12-13,22-24,28-33,39-46,50-53,75,90H,8,11,14-21,25-27,68H2,1-7H3,(H2,67,91)(H2,69,95)(H,72,77)(H,73,78)(H,76,96)(H,79,92)(H,80,100)(H,81,105)(H,82,101)(H,83,99)(H,84,98)(H,85,97)(H,86,104)(H,87,102)(H,88,106)(H,89,103)(H,93,94)(H4,70,71,74);1H4/t32-,33+,39-,40-,41-,42-,43-,44-,45-,46-,50-,51-,52-,53-;/m0./s1
• InChIKey: NNKABSGFRUMXBK-MIGPDYDPSA-N
• SMILES: C.CC[C@H](C)[C@@H](C(=O)N[C@H]1CSSC[C@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC1=O)C(C)C)C(C)C)CCC(=O)N)CC(=O)O)CC2=CNC3=CC=CC=C32)CC4=CN=CN4)CC5=CN=CN5)CCCN=C(N)N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N)N

Compstatin TFA（Cat No.:I044763）is a cyclic tridecapeptide that specifically binds to complement protein C3 and inhibits its activation, thereby blocking all downstream complement pathways (classical, lectin, and alternative). With a sequence designed for high affinity and stability, Compstatin is a potent immunomodulator used to study complement-mediated inflammation, immune responses, and related pathologies. Supplied as a trifluoroacetate (TFA) salt, it is soluble and stable for in vitro and in vivo applications. Compstatin is widely employed in research on age-related macular degeneration, sepsis, transplant rejection, and autoimmune diseases.