Reproductive & Hormonal

OXYTOCIN

Research Use Only
Purity
99%
CAS Number
50-56-6
Molecular Weight
1,007.19 g/mol
Storage
2–8°C (36–46°F)
Zurich Rx research vial with red cap
OXYTOCIN

Compound Overview

Oxytocin is a naturally occurring nonapeptide hormone synthesized primarily in the hypothalamus and released from the posterior pituitary gland. It plays an essential role in neuroendocrine signaling and serves as one of the most extensively studied peptide hormones in physiology. Owing to its highly conserved structure and well-characterized receptor interactions, Oxytocin has become a valuable investigational peptide for research in neuroscience, endocrinology, molecular biology, and receptor pharmacology.

Researchers have extensively investigated Oxytocin for its interactions with the oxytocin receptor (OXTR), a G protein-coupled receptor (GPCR) expressed in the central nervous system and peripheral tissues. Experimental studies have examined its role in intracellular calcium signaling, neuroendocrine communication, smooth muscle physiology, social behavior, stress physiology, and reproductive biology. Oxytocin also serves as an important molecular probe for studying GPCR signaling, peptide-receptor interactions, and neuropeptide regulation in both in vitro and in vivo laboratory models.

As an investigational peptide, Oxytocin supports laboratory research involving neurobiology, endocrinology, receptor pharmacology, peptide chemistry, and molecular signaling.

Research Applications

Oxytocin receptor (OXTR) pharmacology G protein-coupled receptor (GPCR) signaling Neuroendocrine regulation Calcium-mediated intracellular signaling Social behavior and neurobiology Reproductive physiology Smooth muscle biology Stress response mechanisms Structure-activity relationship (SAR) investigations Animal model research

Research applications are presented for educational and informational purposes only and do not imply approved therapeutic uses.

Product Specifications

Purity99%
AppearanceWhite to Off-White Lyophilized Powder
SequenceCys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 (disulfide bridge between Cys1 and Cys6)
Molecular FormulaC43H66N12O12S2
Molecular Weight1,007.19 g/mol
CAS Number50-56-6
StorageStore refrigerated at 2–8°C (36–46°F). For extended laboratory storage, maintain at −20°C or below. Protect from moisture and light.
Research GradeLaboratory Research Use Only

Available Sizes

2 mg

Pricing: Inquire — contact our team for current pricing and availability.

Product Documentation

COA
HPLC Report
Mass Spec
Purity Data
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Every batch of OXYTOCIN is independently tested and assigned its own lot number. When you request documentation, include the product name and lot number printed on your vial so we can send the COA, HPLC, and MS data specific to the batch in your hand — not a generic reference sample. Request documentation →

Laboratory Handling

Store refrigerated immediately upon receipt to preserve peptide stability. For extended laboratory storage, freezing at −20°C or below is recommended. Protect the lyophilized peptide from moisture, excessive heat, and direct light. Following reconstitution, avoid repeated freeze-thaw cycles, as these may reduce peptide stability and biological integrity. Allow the vial to equilibrate to room temperature before opening to minimize condensation, and always use sterile laboratory equipment together with appropriate aseptic laboratory techniques. This product is intended for use only by qualified research personnel operating in controlled laboratory environments.

Selected Scientific Literature

  1. Du Vigneaud V, Ressler C, Trippett S. The Sequence of Amino Acids in Oxytocin, with a Proposal for the Structure of Oxytocin. Journal of Biological Chemistry.
  2. Gimpl G, Fahrenholz F. The Oxytocin Receptor System: Structure, Function, and Regulation. Physiological Reviews.
  3. Lee HJ, Macbeth AH, Pagani JH, Young WS III. Oxytocin: The Great Facilitator of Life. Progress in Neurobiology.
  4. Stoop R. Neuromodulation by Oxytocin and Vasopressin. Neuron.
Research Use Only (RUO)

This product is intended exclusively for laboratory research. It is not intended for human consumption, therapeutic use, diagnostic procedures, or veterinary applications. Zurich Rx supplies research materials solely for scientific investigation; researchers are responsible for ensuring products are handled and used in accordance with applicable laws and institutional policies. See our full RUO disclaimer.

Compare with related compounds

Other compounds researchers commonly browse alongside OXYTOCIN in Reproductive & Hormonal.

CompoundPurityMolecular WeightCAS Number
OXYTOCIN99%1,007.19 g/mol50-56-6
KISSPEPTIN-1099%1,302.42 g/mol374675-21-5

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