What is oxytocin?
Oxytocin is a cyclic nonapeptide with a disulfide bridge between Cys1 and Cys6. Its structure, its history, its status as a medicine, and why research-grade oxytocin acetate is not that medicine.
- Purity
- ≥99% HPLC
- COA
- per batch
- Strength
- 10 mg
Oxytocin Acetate
Oxytocin Acetate is a synthetic peptide of 9 amino acids, the acetate salt of oxytocin with a disulfide bridge between Cys1 and Cys6. Buy Oxytocin Acetate for laboratory research from PulseChem: 10 mg of lyophilized powder per vial, ≥99% purity by HPLC and a COA for every batch.
€39.99 incl. VAT · €33.05 excl. VAT
- Shipping from Europe
- 1–3 working days within Europe
In stock
Volume discount
- 1–4 unitsUnit price€39.99 per unit
- 5–9 units5% off€37.99 per unit
- 10+ units10% off€35.99 per unit
Research Use Only. For laboratory research use only (in vitro). Not for human or animal use. The products are not medicines, foods, or cosmetics. They are not intended to diagnose, treat, cure, or prevent any disease. The information on this website has not been evaluated by the EMA, the Romanian National Agency for Medicines and Medical Devices (ANMDMR), or the FDA. Read the RUO policy
How is a solution prepared?
This is how solutions are prepared in the lab.
Step 1 of 8: Disinfect
The stoppers of both vials are wiped with an alcohol swab.
- Disinfect. The stoppers of both vials are wiped with an alcohol swab.
- Draw up. The needle passes through the stopper of the bacteriostatic water and the plunger draws up liquid.
- Transfer. The liquid runs down the inside wall of the vial with powder.
- Mix. The vial is gently swirled until the solution is clear.
- Done. The solution is ready for use in research.
- Take sample. A new needle passes through the stopper and the plunger draws up part of the solution.
- Sample vial. The solution runs through the septum of the screw cap into a sample vial.
- Analyze. The sample vial goes into the autosampler; the instrument measures the solution in vitro.
For laboratory research use only (in vitro). Not for human or animal use.
Molecule
Research area: Brain
- Molecular formula
- C43H66N12O12S2
- Molecular mass
- 1,007.2 g/mol
Sequence: H-CYIQNCPLG-NH₂
- first residue (N-terminus)
- modified residue or group
- bridge
Structure from PubChem, CID 439302. Schematic in 3D, not a measured structure.
The chain of Oxytocin Acetate
Schematic view of the chain. This is not a measured 3D structure.
Point to an amino acid or use the arrow keys to see its name.
Drag or use the arrow keys to rotate the diagram. Point to a bead to see the name of the amino acid.
- Hydrophobic
- Uncharged side chain that avoids water.
- Polar
- Uncharged side chain that binds water.
- Special (Gly, Pro, Cys)
- Help determine the shape of the chain; cysteine can form a bridge.
- Bridge
- A link between two positions in the chain.
The chain has 9 amino acids, shown here from the N-terminus to the C-terminus. The C-terminus is an amide and there is 1 bridge within the chain. Calculated average molecular mass: 1,007.2 g/mol. Compare this figure with the mass on the certificate of analysis.
On the research map: Brain and pituitary
Batch and COA
The batch number is on the vial label. You can find the certificate of analysis for that batch on the Lab results page or request it from us.
Specifications
| Contents | 10 mg per vial |
|---|---|
| Sequence | H-Cys(1)-Tyr-Ile-Gln-Asn-Cys(1)-Pro-Leu-Gly-NH2 |
| Purity | ≥99% (HPLC) |
| Intended use | For laboratory research use only (RUO) |
About Oxytocin Acetate
Buy Oxytocin Acetate from PulseChem
Each sealed glass vial contains 10 mg of Oxytocin Acetate as a lyophilized (freeze-dried) powder. The label gives the strength and the batch number; that number leads you to the certificate of analysis for the batch.
Oxytocin acetate for sale at PulseChem can be ordered by anyone aged 18 or over who buys for laboratory research, as a guest or with an account; research use is confirmed at checkout.
What is Oxytocin Acetate?
Oxytocin is a cyclic nonapeptide: a disulfide bridge closes the first six amino acids into a ring, the last three hang from it as a tail, and the chain ends in an amide. This product is the acetate salt; the Molecule section on this page shows the peptide without the acetate.
Vincent du Vigneaud was the first to make oxytocin by chemical synthesis, in the mid-1950s. He received the 1955 Nobel Prize in Chemistry, especially for that synthesis. More in What is oxytocin?
Purity and COA for every batch
An external laboratory determines purity by HPLC (≥99%) and identity by mass spectrometry for every batch. In the mass spectrum the peptide appears without the acetate, and the measured mass has to fit the disulfide bridge and the amide at the end. The COA for your batch is under Lab results.
Storage and shipping
Store the closed vial cool, dry and dark according to the label and COA; the disulfide bridge is an extra reason to avoid moisture and heat. We ship from Europe, insulated and tracked, with a cold pack in warm weather. Received and paid before 3 p.m. Central European time on a working day: shipped the same day. Delivery takes 1–3 working days within Europe; EU only.
For laboratory research only, not for human or animal use.
Questions about Oxytocin Acetate
Where can I buy Oxytocin Acetate?
Oxytocin Acetate is available from PulseChem in this web shop. The 10 mg vial costs €39.99 including VAT, and Oxytocin Acetate is in stock. Orders received and paid before 3 p.m. Central European time on a working day ship the same day; delivery takes 1–3 working days within Europe. Every batch has a COA.
How is the purity of Oxytocin Acetate tested?
An external laboratory measures the purity of Oxytocin Acetate for every batch by HPLC: ≥99%. Mass spectrometry confirms the identity of the peptide. Because this is an acetate salt, the acetate counts toward the weight of the powder; the COA for the batch shows what was measured. See Lab results.
Who can order Oxytocin Acetate?
Oxytocin Acetate can be ordered by anyone aged 18 or over who buys it for laboratory research. You order as a guest or with an account, and at checkout you confirm that the product is for laboratory research only. Other research peptides for sale at PulseChem are ordered the same way.
Is Oxytocin Acetate a medicine?
No, the Oxytocin Acetate from PulseChem is a research chemical, not a medicine. Oxytocin is the active ingredient of prescription medicines, but such a medicine is a finished product, prepared, controlled and authorized under medicines law. This powder is intended for laboratory research only. See What is oxytocin?
Background from the knowledge base
How are peptides made? Synthesis and purification
From solution-phase chemistry to Merrifield's solid support, the Fmoc cycle, where impurities come from, purification by preparative HPLC, and what counterions do to the weight.
What is a COA?
A certificate of analysis tells you what is in a batch and how it was measured. How to read one, and how to check that it belongs to your vial.
