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Reference sheet · Endocrine · CPC catalog code OXYT-004
This sequence carries terminal or reporter modifications (NH2), so no molecular formula or weight is published here — the modified mass must come from the lot certificate of analysis. Residue composition and charge describe the peptide backbone only. Composition figures above are derived arithmetically from the published sequence for the unmodified free peptide. Salt forms (commonly trifluoroacetate or acetate), amidation, and other modifications shift the observed mass — always reconcile against the current lot certificate of analysis.
Volumes for a 1 mg vial of (Ser4,Ile8)-Oxytocin, Isotocin at common working concentrations. Add solvent slowly down the vial wall and swirl — do not vortex or shake.
Reference standards in the Endocrine class are typically shipped as lyophilized powder and stored desiccated at −20 °C protected from light. Once reconstituted in bacteriostatic water or the assay-appropriate buffer, aliquot and store at −80 °C to minimize freeze–thaw cycles. Confirm handling requirements against your institutional biosafety and radiation protocols before use.
(Ser4,Ile8)-Oxytocin, Isotocin sits within the Endocrine research class (CPC reference OXYT-004). Endocrine peptides bind class A/B GPCRs and RTKs on hormone-responsive tissues, triggering canonical cAMP, IP₃/Ca²⁺, and MAPK pathways that regulate secretion, growth, and metabolism. Investigators typically incorporate (Ser4,Ile8)-Oxytocin, Isotocin as a reference standard, tool ligand, or substrate in the assay contexts listed above. HTRF cAMP, calcium mobilization (FLIPR), and radioligand binding are the standard readouts.
(Ser4,Ile8)-Oxytocin, Isotocin (CPC catalog code OXYT-004) is a synthetic endocrine research peptide in the endocrine category. It is provided as a lyophilized ~1 mg vial for in-vitro research use only.
Published and internal research programs use (Ser4,Ile8)-Oxytocin, Isotocin as a reference standard in endocrine workflows — for example, receptor-binding and functional selectivity studies and second-messenger (camp / ip₁) profiling. Human clinical evidence is not established.
No. (Ser4,Ile8)-Oxytocin, Isotocin is a research-grade reference peptide and is not approved by the FDA or any national regulator for human or veterinary therapeutic use. It is offered exclusively for in-vitro laboratory research and does not ship to the United States for consumer use.
In a endocrine workflow, (Ser4,Ile8)-Oxytocin, Isotocin is reconstituted in sterile buffer or DMSO (solubility-dependent) and applied in the researcher's chosen assay format. HTRF cAMP, calcium mobilization (FLIPR), and radioligand binding are the standard readouts.
Other reference standards in the same class — commonly cross-referenced during assay design and comparator selection.