Oxytocin
- CAS Registry Number
- 50-56-6 Source Verified 2026-10-10
- Compound class
- cyclic nonapeptide Source Verified 2026-10-10
- Molecular formula
- C43H66N12O12S2 Source Verified 2026-10-10
- Molecular weight
- 1007.2 g/mol Source Verified 2026-10-10
- Name
- Oxytocin Source Verified 2026-10-10
- PubChem CID
- 439302 Source Verified 2026-10-10
- Sequence
- Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 (Cys1-Cys6 disulfide) Source Verified 2026-10-10
- Storage (lyophilised)
- -20 °C, dry, protected from light Source Verified 2026-10-10
- Synonyms
- OT; alpha-hypophamine Source Verified 2026-10-10
Research use only. Not for human or veterinary use.
Identity at a glance
| Name | Oxytocin |
|---|---|
| Class | cyclic nonapeptide (neurohypophysial peptide) |
| Formula (PubChem) | C43H66N12O12S2 |
| Molecular weight (PubChem, computed) | 1007.2 g/mol |
| PubChem CID | 439302 |
| Form at Sable | Freeze-dried powder |
| Release specification | ≥99% by HPLC, identity checked against expected mass |
Structure
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, with a disulfide bridge between Cys1 and Cys6.
Research context
A neurohypophysial peptide studied in receptor and neuroscience research. It is also the active substance of licensed medicines (Sable does not sell those medicines). This describes how the substance is characterised in research sources. It is not a claim about effects in people.
Reading this record
- Lot number: printed on the vial and not repeated online.
- Certificate of analysis: issued for every batch, available for every lot. Email hello@sablepeptides.co.uk with your order number.
- Price: each vial page holds the catalogue price for that size only.
- Laboratory research material only. Not a medicine. Not for use in people or animals. No administration or treatment information is provided.
Sable vials and pages
Quick answers
- What is Oxytocin?
- Oxytocin: cyclic nonapeptide (neurohypophysial peptide). PubChem CID 439302, formula C43H66N12O12S2.
- Is Oxytocin sold for use in people?
- No. Laboratory research material only. Not a medicine. Not for use in people or animals. No administration or treatment information is provided.
Sources
Cite this
Research use only. Not for consumption. No health claims.
Plain
Sable Peptides. (2026). Oxytocin. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/ref/oxytocin
APA
Sable Peptides. (2026, October 11). *Oxytocin*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/ref/oxytocin
BibTeX
@misc{sable_oxytocin_2026,
author = {{Sable Peptides}},
title = {{Oxytocin}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/ref/oxytocin}},
note = {Accessed 11 October 2026. CC BY 4.0}
}Badge
<a href="https://www.sablepeptides.co.uk/ref"><img src="https://www.sablepeptides.co.uk/badge/ref.svg" alt="Data: UK Research Peptide Reference — Sable Peptides" width="220" height="40"></a>
Date modified: 2026-10-10