Education
What Is Oxytocin Acetate?

The first peptide hormone ever synthesised, in its standard research form — oxytocin's structure, history, and place in receptor research.
Oxytocin is the classic cyclic nonapeptide hormone — nine residues closed into a ring by a disulfide bridge — and a landmark of peptide science: it was the first peptide hormone ever chemically synthesised, by Vincent du Vigneaud's laboratory in 1953, work recognised with a Nobel Prize. The acetate salt is its standard research form.
What is oxytocin acetate?
The acetate designation matters less than it looks: it is simply the salt form chosen for solubility and handling, standard across research peptides of this class. The molecule itself is the same nine-residue, disulfide-bridged hormone that made peptide synthesis a field in the first place.
What researchers study it for
Oxytocin's receptor is one of the most-studied GPCRs in social-behaviour and neuroendocrine research, and the peptide remains the reference agonist for that entire literature — receptor pharmacology, assay calibration, and behavioural-signalling models all anchor on it. A verified synthetic supply matters precisely because so much downstream work assumes the input is exactly what it claims to be. Being a small cyclic peptide, it also handles predictably under standard reconstitution practice.
Working with research-grade oxytocin acetate
REPRIME supplies oxytocin acetate as a lyophilized 10 mg vial, HPLC-verified per batch with a public COA and first-scan verification code. See the product page. Research use only.
Frequently asked questions
What does the "acetate" in oxytocin acetate mean?
It is the salt form — the standard research presentation of the peptide, chosen for solubility and handling. The active molecule is unchanged.
Why is oxytocin historically important?
It was the first peptide hormone ever chemically synthesised (du Vigneaud, 1953, Nobel Prize 1955) — the proof that peptide hormones could be built, not just isolated.
How is research-grade oxytocin acetate supplied?
As a lyophilized 10 mg vial with batch HPLC verification, a public COA, and a verification code — see the product page.