Oxytocin-d10 (trifluoroacetate salt)

Oxytocin-d10 is intended for use as an internal standard for the quantification of oxytocin (Cay-11799) by GC- or LC-MS. Oxytocin is a nine-amino acid peptide hormone with roles in development, parturition, lactation, olfaction, and social behavior. It is synthesized in hypothalamic magnocellular neurons and in some peripheral tissues, including the lining of the uterus during pregnancy and the testes. Oxytocin binds primarily to and activates the oxytocin receptor (OT receptor) to initiate tissue-dependent biological responses, including uterine contraction, social cognition, and prevention of gastrointestinal inflammation, but also acts as an agonist of transient receptor potential vanilloid 1 (TRPV1) and a positive allosteric modulator of µ-opioid receptors. Dysregulation of oxytocin signaling is associated with dysfunctional labor, postpartum hemorrhage, and preterm birth. Formulations containing oxytocin have been used in the induction of labor and antepartum to control postpartum bleeding or hemorrhaging. Formal Name: (2S)-N-(1-((2-amino-2-oxoethyl)amino)-4-(methyl-d3)-1-oxopentan-2-yl-2,3,3,4,5,5,5-d7)-1-((4R,7S,10S,13S,16S,19R)-19-amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-13-((S)-sec-butyl)-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)pyrrolidine-2-carboxamide, trifluoroacetate salt. Synonyms: OXT-d10. Molecular Formula: C43H56D10N12O12S2  XCF3COOH. Formula Weight: 1017.3. Purity: >99% deuterated forms (d1-d2). Formulation (Request formulation change): A solid. Solubility: Water: Soluble. SMILES: NC(CNC(C(NC([C@H]1N(C([C@@H](NC([C@H](CC(N)=O)NC([C@@H]2CCC(N)=O)=O)=O)CSSC[C@H](N)C(N[C@@H](CC3=CC=C(O)C=C3)C(N[C@]([C@@H](C)CC)([H])C(N2)=O)=O)=O)=O)CCC1)=O)([2H])C([2H])([2H])C(C([2H])([2H])[2H])([2H])C([2H])([2H])[2H])=O)=O.FC(F)(F)C(O)=O. InChi Code: InChI=1S/C43H66N12O12S2.C2HF3O2/c1-5-22(4)35-42(66)49-26(12-13-32(45)57)38(62)51-29(17-33(46)58)39(63)53-30(20-69-68-19-25(44)36(60)50-28(40(64)54-35)16-23-8-10-24(56)11-9-23)43(67)55-14-6-7-31(55)41(65)52-27(15-21(2)3)37(61)48-18-34(47)59.3-2(4,5)1(6)7/h8-11,21-22,25-31,35,56H,5-7,12-20,44H2,1-4H3,(H2,45,57)(H2,46,58)(H2,47,59)(H,48,61)(H,49,66)(H,50,60)(H,51,62)(H,52,65)(H,53,63)(H,54,64).(H,6,7)/t22-,25-,26-,27-,28-,29-,30-,31-,35-./m0./s1/i2D3,3D3,15D2,21D,27D.. InChi Key: HCWNGYCIMQIGKC-UUDLJPFQSA-N. Storage: -20°C. Stability: > 4 years.