Deltorphin 2 TFA

• CAT Number: I044764
• Molecular Formula: C40H55F3N8O12
• Molecular Weight: 896.91
• Purity: ≥95%
• Synonyms: (4S)-4-[[(2S)-2-[[(2R)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoyl]amino]-3-phenylpropanoyl]amino]-5-[[(2S)-1-[[(2S)-1-[(2-amino-2-oxoethyl)amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-5-oxopentanoic acid;2,2,2-trifluoroacetic acid
• InChI: InChI=1S/C38H54N8O10.C2HF3O2/c1-20(2)31(37(55)41-19-29(40)48)46-38(56)32(21(3)4)45-35(53)27(15-16-30(49)50)43-36(54)28(18-23-9-7-6-8-10-23)44-33(51)22(5)42-34(52)26(39)17-24-11-13-25(47)14-12-24;3-2(4,5)1(6)7/h6-14,20-22,26-28,31-32,47H,15-19,39H2,1-5H3,(H2,40,48)(H,41,55)(H,42,52)(H,43,54)(H,44,51)(H,45,53)(H,46,56)(H,49,50);(H,6,7)/t22-,26+,27+,28+,31+,32+;/m1./s1
• InChIKey: HCWNUZKKWMPYQE-CEULVJOSSA-N
• SMILES: C[C@H](C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N)NC(=O)[C@H](CC2=CC=C(C=C2)O)N.C(=O)(C(F)(F)F)O

Deltorphin 2 TFA（Cat No.:I044764）is a naturally occurring heptapeptide with the sequence Tyr-D-Ala-Phe-Glu-Val-Val-Gly-NH₂, known for its high selectivity and affinity for δ-opioid receptors. Isolated from amphibian skin secretions, Deltorphin 2 is a valuable pharmacological tool for studying δ-opioid receptor function, pain modulation, and opioid signaling pathways. The C-terminal amidation enhances receptor binding, while the trifluoroacetate (TFA) salt form ensures improved solubility and stability. Deltorphin 2 is widely used in neuroscience and analgesic research to explore non-addictive alternatives to traditional μ-opioid agonists.