Oxytocin 5mg – 99% Pure Peptide for Sale

Elevate your studies with Oxytocin (CYIQNCPLG-NH₂), a cyclic nonapeptide supplied by Peptide Tech at ≥99% purity for precise, reproducible in-vitro, cellular, and biochemical applications. As a well-characterized OXTR (oxytocin receptor) ligand, Oxytocin is frequently used to probe GPCR signaling cascades, develop and validate analytical methods, and benchmark receptor-binding assays—without any clinical or human-use context.

SPECIFICATIONS TABLE

Property: Details
— CAS Number: 50-56-6
— Chemical Name: L-cysteinyl-L-tyrosyl-L-isoleucyl-L-glutaminyl-L-asparaginyl-L-cysteinyl-L-prolyl-L-leucyl-glycinamide (disulfide bridge Cys¹–Cys⁶)
— PubChem CID (clickable): PubChem CID 439302 — https://pubchem.ncbi.nlm.nih.gov/compound/Oxytocin
— Molecular Formula: C43H66N12O12S2
— Molecular Weight: 1007.19 g/mol
— Physical Appearance: White to off-white lyophilized powder
— Sequence: Cys–Tyr–Ile–Gln–Asn–Cys–Pro–Leu–Gly–NH₂ (CYIQNCPLG-NH₂)
— Container: 3 mL glass vial (5 mg net content)
— Purity: ≥99% (verified by HPLC & MS)
— Solubility: Soluble in sterile water or compatible aqueous buffer; gently agitate until fully dissolved; filter-sterilize if required

Specs validated via PubChem and a major reference supplier entry. (PubChem, MilliporeSigma)

View the Oxytocin structure on PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/Oxytocin. (PubChem)

OXYTOCIN BIOLOGICS

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WHY PEPTIDE TECH

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PRODUCT OVERVIEW

Oxytocin (nonapeptide, cyclic) is a reference ligand for OXTR widely used to interrogate Gq/PLC–Ca²⁺ and downstream ERK/MAPK signaling in receptor-positive cell models. Its compact sequence and robust literature record make it a dependable control for receptor-binding, functional readouts (e.g., intracellular Ca²⁺ flux), and method development in analytical labs. Peptide Tech pairs high analytical confirmation (MS/HPLC) with cold-chain fulfillment to protect peptide integrity from our facility to your bench.

POTENTIAL APPLICATIONS IN RESEARCH

• GPCR signaling dissection in OXTR-expressing cell lines, mapping PLC–IP₃–Ca²⁺ flux and ERK/MAPK activation via reporter assays, Westerns, or live-cell imaging. (PMC, PubMed)
• Radioligand or competition-binding assays to quantify OXTR affinity/selectivity and derive Kd/Ki values for candidate ligands or tool compounds. (PubMed)
• 3D spheroid/phenotypic models evaluating OXTR-mediated morphological responses and cell-level signaling outcomes under controlled in-vitro conditions. (PMC)
• Analytical method development and validation (e.g., LC–MS/MS, RIA/ELISA) for peptide detection, extraction recovery, matrix effects, and quantitation performance. (PMC)
• Calcium-imaging workflows (e.g., ratiometric dyes or GECIs) to benchmark ligand-evoked Ca²⁺ transients downstream of OXTR activation. (PMC)

CITATIONS

Gárriz, Agustina, et al. “Role of the Phospholipase C Pathway and Calcium in Oxytocin-Induced Cellular Responses.” Biomedicines, vol. 9, no. 11, 2021, Article 1584. https://pmc.ncbi.nlm.nih.gov/articles/PMC8626846/. (PMC)

Rimoldi, Valentina, et al. “Oxytocin Receptor Elicits Different EGFR/MAPK Activation Patterns Depending on Membrane Localization.” Journal of Neurochemistry, vol. 86, no. 4, 2003, pp. 974–985. https://pubmed.ncbi.nlm.nih.gov/12955084/. (PubMed)

Pettibone, Douglas J., et al. “Identification of Functional Oxytocin Receptors in Lactating Rat Mammary Gland: Radioligand Binding and Functional Assays In Vitro.” Endocrinology, vol. 127, no. 2, 1990, pp. 780–788. https://pubmed.ncbi.nlm.nih.gov/2163875/. (PubMed)

Werry, Emma L., et al. “Measuring Affinity of Ligands to the Oxytocin Receptor by Radioligand Binding.” Methods in Molecular Biology, vol. 2390, 2022, pp. 241–260. https://pubmed.ncbi.nlm.nih.gov/34550578/. (PubMed)

Hering, Alexander, et al. “Approaches to Improve the Quantitation of Oxytocin in Biological Matrices: An Analytical Perspective.” Journal of Neuroscience Methods, vol. 371, 2022, 109495. https://pmc.ncbi.nlm.nih.gov/articles/PMC9218718/. (PMC)

QUALITY, STORAGE & HANDLING

Each lot is verified by HPLC (purity) and MS (identity), with batch traceability via QR. Third-party U.S. labs test for purity, quantity, and endotoxin.
• Storage (lyophilized): −20 °C (long term).
• Storage (reconstituted): aliquot and store at −80 °C; avoid repeated freeze–thaw.
• Handling: Use sterile technique; select solvent/buffer appropriate to your assay; minimize exposure to moisture/heat.

SHIPPING & FULFILLMENT

Ships in cold-chain packaging by default. Same-day dispatch for in-stock items placed before daily cutoff; 2-Day FedEx/UPS standard with overnight options. Automated text/email updates and international service available where permitted.

COMPLIANCE & RUO DISCLAIMER

For laboratory research use only. Not for human or animal use, ingestion, diagnostic, or therapeutic applications. COAs and batch documentation available upon request or via QR.

FAQ

Is this Oxytocin intended for human use?
No. It is sold strictly as RUO—not for human or animal use, ingestion, diagnostic, or therapeutic purposes.
What purity do you provide?
Each 5 mg vial is ≥99% by HPLC with MS identity confirmation and third-party testing; see the lot-matched COA via QR.
How should I reconstitute it?
Use sterile water or compatible aqueous buffer; gently invert until dissolved. Filter through 0.22 µm if your assay requires sterility. Avoid multiple freeze–thaw cycles by aliquoting.
What assays is Oxytocin commonly used in?
Typical in-vitro uses include OXTR binding, Ca²⁺ flux/PLC pathway readouts, ERK/MAPK signaling studies, and analytical method validation (e.g., LC–MS, RIA). (See citations above.)