Oxytocin is a naturally occurring peptide hormone that plays an important role in neurochemical and physiological research. It is widely studied for its involvement in social bonding, emotional regulation, stress response, and hormonal signaling pathways.
In laboratory and analytical settings, oxytocin is commonly used to explore neurotransmitter activity, receptor interactions, and endocrine system functions. Due to its well-documented role in brain–body communication, it remains a valuable compound for researchers examining behavioral science, neuroscience, and hormonal regulation.
This product is supplied with a focus on purity, consistency, and proper handling, making it suitable for controlled research environments. Careful sourcing and quality standards help ensure reliability for experimental and analytical applications.
Research on oxytocin has explored roles in:
- milk ejection / lactation
- uterine contraction during childbirth
- blood pressure regulation
- neuron signaling and plasticity
- social bonding and attachment
- fear and anxiety responses
- mood regulation
- wound healing and inflammation signaling
Biochemical Characteristics
Source: PubChem
Sequence: Cys(1)-Tyr-Ile-Gln-Asn-Cys(1)-Pro-Leu-Gly
Molecular Formula: C43H66N12O12S2
Molecular Weight: 1007.193 g/mol
PubChem CID: 439302
CAS Number: 50-56-6
Synonyms: Pitocin, Endopituitrina, Ocytocin
Oxytocin is a cyclic nonapeptide stabilized by a disulfide bond between cysteine residues, forming a ring structure that supports receptor binding. In laboratory settings, oxytocin identity and purity are commonly confirmed using chromatographic and spectrometric methods to ensure consistency across experimental workflows.
Research Applications
Oxytocin is supplied for laboratory research and may be used as a tool compound in controlled non-clinical studies involving:
- Oxytocin receptor (OXTR) pharmacology, ligand binding, and receptor-selectivity experiments
- Second-messenger and downstream signaling studies (e.g., intracellular calcium dynamics and kinase/transcriptional responses)
- Neuroendocrine research models evaluating stress responsivity, social behavior paradigms, and neuronal plasticity endpoints
- Reproductive physiology signaling studies (uterine contractility pathways, lactation-related signaling, and tissue-level responses)
- Inflammation and wound-healing research frameworks assessing cytokine signatures and repair-related biomarkers
- Cardiometabolic and vascular signaling investigations in preclinical models (blood pressure, metabolic endpoints, and inflammatory mediators)
All applications are restricted to in-vitro and in-vivo animal research contexts and are not intended for human diagnostic or therapeutic use.
| Properties | |
|---|---|
| Molecular Formula | C43H66N12O12S2 |
| Molecular Weight | 1007.2 |
| Monoisotopic Mass | 1006.43645793 |
| Polar Area | 450 |
| Complexity | 1870 |
| XLogP | -2.6 |
| Heavy Atom Count | 69 |
| Hydrogen Bond Donor Count | 12 |
| Hydrogen Bond Acceptor Count | 15 |
| Rotatable Bond Count | 17 |
| PubChem LCSS | Oxytocin Laboratory Chemical Safety Summary |
| Identifiers | |
|---|---|
| CID | 439302 |
| InChI | InChI=1S/C43H66N12O12S2/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/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)/t22-,25-,26-,27-,28-,29-,30-,31-,35-/m0/s1 |
| InChIKey | XNOPRXBHLZRZKH-DSZYJQQASA-N |
| Isometric SMILES | CC[C@H](C)[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N1)CC2=CC=C(C=C2)O)N)C(=O)N3CCC[C@H]3C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N |
| Canonical SMILES | CCC(C)C1C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)N1)CC2=CC=C(C=C2)O)N)C(=O)N3CCCC3C(=O)NC(CC(C)C)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N |
| IUPAC Name | (2S)-1-[(4R,7S,10S,13S,16S,19R)-19-amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-13-[(2S)-butan-2-yl]-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carbonyl]-N-[(2S)-1-[(2-amino-2-oxoethyl)amino]-4-methyl-1-oxopentan-2-yl]pyrrolidine-2-carboxamide |
Pathway / Mechanistic Context
Oxytocin mediates its primary effects through the oxytocin receptor (OXTR), a G protein–coupled receptor expressed in both central nervous system and peripheral tissues (including reproductive tissues and vascular-related cell types). In canonical signaling models, OXTR engagement is commonly associated with phospholipase C activation, inositol phosphate signaling, and intracellular calcium mobilization, enabling context-dependent downstream phosphorylation events and transcriptional responses.
In research settings, oxytocin signaling is frequently studied across multiple biological layers—from receptor pharmacology and intracellular signaling to tissue-level physiology and behavior—because central release (neuropeptide signaling) and peripheral circulation (hormonal signaling) can map to distinct experimental endpoints.
Preclinical Research Summary (What is an oxytocin injection used for?)
1. Wound Healing, Inflammation, and Social Stress Biology
Research has examined oxytocin-related physiology in the context of interpersonal interaction, inflammatory signaling, and repair outcomes. Human and translational studies have evaluated associations among relationship behaviors, hormone-related dynamics, cytokine activity, and wound healing trajectories [1], [2].
2. Cardiovascular and Vascular-Inflammatory Signaling Frameworks
Reviews and preclinical investigations have discussed oxytocin signaling in cardiovascular risk frameworks, including potential links to blood pressure regulation, inflammatory modulation, and receptor-mediated pathways relevant to atherosclerotic disease mechanisms
3. Metabolic Homeostasis (Obesity & Dysglycemia Models)
Oxytocin signaling has been explored in energy balance and metabolic homeostasis research, including studies evaluating adiposity-related endpoints and insulin sensitivity in controlled models. Literature reviews and experimental work discuss phenotype-dependent responses (e.g., lean vs. obese contexts) and summarize clinical-adjacent trial observations in obesity and dysglycemia research
4. Stress, Cognition, and Anxiety-Related Behavioral Models
Preclinical research has evaluated oxytocin within stress paradigms and developmental adversity models, including learning/cognition measures, anxiety-like behavior endpoints, and hippocampal signaling marker assessments
5. Social Bonding, Attachment, and OXTR Epigenetic/Genetic Associations
A substantial body of work examines oxytocin receptor biology (including genetics and epigenetics) in relation to social and anxiety phenotypes. Reviews and cohort studies have evaluated oxytocin receptor methylation and broader oxytocin-related signaling correlates in social anxiety and behavioral dimensions
6. Neural Circuitry and Feeding Regulation
Oxytocin signaling has also been discussed in neural circuit research relevant to hunger and feeding behavior, contributing to broader mapping of neuroendocrine regulation of energy intake
Oxytocin exhibits minimal side effects, low oral and excellent subcutaneous bioavailability in mice. Per kg dosage in mice does not scale to humans. Oxytocin for sale is limited to educational and scientific research only, not for human consumption. Only buy Oxytocin if you are a licensed researcher.



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