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Oxytocin CAS NO.24346-32-5

Oxytocin is a cyclic nonapeptide neurohypophysial hormone composed of nine amino acids with a disulfide bond essential for its structural integrity and biological activity. It is supplied as a high-purity, white to off-white lyophilized powder soluble in aqueous solutions. This peptide hormone is critical for regulating social bonding, reproductive functions, and emotional responses, making it a fundamental tool in neuroendocrine, behavioral, and obstetric research.

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TECHNICAL SPECIFICATIONS

Item	Specification
Product Name	Oxytocin
CAS NO.	24346-32-5
Appearance	White to off-white lyophilized powder
Molecular Formula	C43H66N12O12S2
Molecular Weight	1007.2 g/mol
Purity (RP-HPLC)	≥ 95.0%
Solubility	Soluble in water, acetic acid (0.1% v/v), or phosphate‑buffered saline (PBS). Recommend dissolving in 0.1% acetic acid for stock solution (0.1–1.0 mg/mL).
Endotoxin	< 1.0 EU/mg
Biological Activity	Oxytocin is a cyclic nonapeptide hormone and neuropeptide that acts as an agonist at the oxytocin receptor. It stimulates uterine contraction, milk ejection, and social‑bonding behaviors. Bioactivity is typically confirmed by in vitrouterine smooth‑muscle contraction assays or receptor‑binding assays.
Storage Conditions	Lyophilized powder: Store at –20 °C or below, desiccated, protected from light. Reconstituted solution: Aliquot and store at ≤ –20 °C; avoid repeated freeze‑thaw cycles.
Stock Location	Stock in USA
MOQ	1g

1.MECHANISM OF ACTION

Oxytocin exerts its effects by binding to specific G-protein-coupled oxytocin receptors located on the surface of target cells, primarily in the uterus and mammary glands. This binding activates phospholipase C, leading to increased intracellular inositol triphosphate and diacylglycerol, which mobilize calcium from intracellular stores. The rise in cytosolic calcium triggers smooth muscle contraction in the myometrium and myoepithelial cells, facilitating uterine contractions during labor and milk ejection during lactation, while also modulating neurotransmission in the brain to influence social behavior and stress responses.

2.PRODUCT INDICATIONS

This product is indicated for research applications in neuroendocrinology, reproductive biology, and behavioral science. It is used in in vitrostudies of uterine smooth muscle contraction, lactation mechanisms, and social bonding behaviors, as well as in in vivomodels to investigate parturition, maternal behavior, and anxiety. The research-grade peptide also supports the development of pharmacological analogs and therapeutic strategies for conditions like autism spectrum disorder, postpartum depression, and dysfunctional labor.

3.CLINICAL EFFICACY OF PRODUCT

As a research-grade peptide, Oxytocin itself is not approved for direct clinical use; however, synthetic oxytocin (Pitocin) is a WHO Essential Medicine with established clinical efficacy. It is routinely administered to induce or augment labor, manage postpartum hemorrhage, and complete incomplete abortions. Clinical trials and meta-analyses confirm its high efficacy in reducing labor duration and preventing post-partum bleeding, though its investigational use for neuropsychiatric conditions like autism and social anxiety has shown mixed results and requires further validation.

4.DELIVERY & SHIPPING

We specialize in global logistics for various cosmetic peptides. Your order will be handled with the utmost care, ensuring safe, reliable, and intact delivery.
Professional and Secure Packaging
Each bottle of peptide is protected with a special packaging solution to ensure stability and integrity during transportation.
We can also customize packaging according to customer needs.
Shipping Methods
Main Method: International Air Freight

We primarily use DHL, FedEx, UPS, and TNT because of their global reliability, speed, and advanced tracking systems. Air freight ensures the fastest transit time and minimizes the impact of environmental factors on the product.