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How to Read a Oxytocin Acetate Certificate of Analysis (COA)

A Certificate of Analysis is only useful if you know which number on it matters for the compound in front of you. For Oxytocin Acetate, the informative checks are not the same as for a generic short peptide.

Cyclic nonapeptide with intramolecular disulfide bridgeCognitive & Neurological

In plain English

Confirm the weight near 1007.2 for the intact loop. The critical extra check is whether any material appears at roughly double that weight — that means two molecules have joined together through swapped sulfur bonds. Purity percentage alone can look fine while that is happening.

What Oxytocin Acetate actually is

Oxytocin is a natural hormone made in the brain, familiar from research on social bonding and childbirth. It also holds a place in chemistry history: it was the first hormone of its kind ever built synthetically, in 1953, and that work won a Nobel Prize two years later.

Supplied for laboratory research use only — not for human or animal use.

Research-grade Oxytocin Acetate

Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.

Technical detail below

Assays that are informative for Oxytocin Acetate

Method 1RP-HPLC purity (UV 214 nm)
Method 2LC-MS identity / molecular-ion confirmation
Method 3Appearance and reconstitution clarity
Method 4Disulfide integrity / dimer content by SEC or HPLC

What to check on the COA

Confirm the molecular ion at 1007.2 Da for the intact cyclic monomer. The critical additional check is dimer content: a species at roughly twice the monomer mass indicates intermolecular disulfide exchange. Purity by HPLC alone can look acceptable while dimer accumulates, so the mass spectrum matters here more than for linear peptides.

Characteristic impurity profile

Disulfide-linked dimers, deamidated species (+1 Da), and reduced open-chain forms.

Verify a Popular Peptides batch

Every batch is third-party tested by HPLC and LC-MS with a published Certificate of Analysis (≥99% purity). Enter a lot number to pull the COA for the exact vial in front of you.

What Oxytocin Acetate is studied for

Social behaviour and bonding

The largest behavioural-neuroscience literature of any peptide in this catalogue.

HPA axis and stress modulation

Studied for interactions with cortisol and stress-response signalling.

Reproductive physiology

Its originally characterised role, and the basis of its clinical history.

Vasopressin receptor cross-talk

Oxytocin and vasopressin differ by two residues, and receptor cross-reactivity is a persistent methodological theme.

Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.

More Oxytocin Acetate reference

Purity & COA reference for other compounds

Oxytocin Acetate overview Oxytocin Acetate calculatorOxytocin Acetate product details

Oxytocin Acetate is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.