Oxytocin 2mg ships as a 2mg vial of lyophilized powder, held in stock in the United States and priced at $28 per vial. Order two and the per vial price drops to $26, three brings it to $25, and five brings it to $23. Bundle pricing applies in the cart automatically, with no code. Orders placed before 4PM ET leave the same day.
What researchers look for in an Oxytocin supplier
Oxytocin is a well characterized commodity peptide, so the difference between suppliers is not the molecule. It is whether the vial is on the shelf, what it costs once shipping is added, and how fast it moves once the card clears. Four things decide whether a second oxytocin order goes to the same supplier.
Stock that is real, not a backorder queue. Every listing on this site reports the count actually on the shelf in the United States. Oxytocin 2mg is listed with 6 vials on hand. When that count reaches zero the listing goes out of stock rather than accepting an order against a restock date.
Published pricing with no quote step. The price is $28 a vial and the bundle tiers are printed on this page. There is no minimum order, no account application, and no email thread needed to learn what a vial costs. What the cart shows is what the card is charged.
Same day dispatch, seven days a week. The 4PM ET cutoff runs seven days a week, so a Saturday order does not wait for Monday. Tracking is emailed the same day the parcel leaves, not the next business morning. Standard Shipping is $12 and arrives in 2 to 5 business days.
One purity standard across the catalog. Oxytocin is held to 98% or higher purity, the same standard applied to every compound listed. Material below that standard is not listed and not sold. The vial ships sealed and lyophilized, which is the form a disulfide bonded peptide keeps best.
Product details
- Compound: Oxytocin – Cyclic Nonapeptide Hormone
- Presentation: 2mg lyophilized powder in a sealed vial
- SKU: CRP-OXT-2
- CAS number: 50-56-6
- Molecular weight: 1,007.19 Da
- Price: $28.00 per vial, with bundle pricing at two, three and five units
- Availability: in stock, ships from the United States
- Supplied for: laboratory research use only
Oxytocin 2mg, $28 a vial, in stock now
Buy Oxytocin 2mgBrowse the catalogLyophilized 2mg vial held in the United States. Order before 4PM ET and it dispatches today, seven days a week.
What Oxytocin is, in research terms
Oxytocin is a cyclic nonapeptide with the sequence Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, closed by a disulfide bond between the cysteines at positions 1 and 6 and amidated at the C-terminus. The molecular formula is C43H66N12O12S2, the molecular weight is 1,007.19 Da, and the CAS number is 50-56-6. It is produced in the hypothalamic paraventricular and supraoptic nuclei and released from the posterior pituitary. Core Research Peptides supplies it as a 2mg lyophilized vial.
The published preclinical literature describes oxytocin acting at the oxytocin receptor, a class A G protein coupled receptor that couples through Gq/11 to phospholipase C and raises intracellular calcium. That makes it a convenient tool compound, because the functional readout is fast and quantitative. It also enables one specific comparison. Vasopressin differs from oxytocin at only two residues, so running the pair side by side separates oxytocin receptor mediated responses from vasopressin receptor mediated ones.
Model systems in this literature fall into three groups. Recombinant CHO and HEK lines expressing the cloned receptor carry the binding and calcium flux work. Isolated uterine strips under isometric tension in an organ bath carry the contractility work and remain the classical bioassay. Prairie vole partner preference testing and rodent social approach tasks carry the behavioral work, usually alongside receptor knockout lines. For background on how research peptides are specified, see What Are Research Peptides?.
The free Oxytocin research guide collects the reconstitution table, storage conditions, handling notes and the assay classes above into one printable document. Download it at free research guide for Oxytocin. No purchase and no account are needed to read it.
Bundle pricing, printed on the page
| Quantity | Per vial | Order total | Savings |
|---|---|---|---|
| 1 vial | $28 | $28 | – |
| 2 vials | $26 | $52 | $4 |
| 3 vials | $25 | $75 | $9 |
| 5 vials | $23 | $115 | $25 |
A 2mg vial goes quickly in an organ bath. Isometric tension work on uterine strips runs a full concentration series per tissue, and the comparison that makes the readout interpretable, vasopressin run in parallel at matched concentrations, doubles the plan again. The per vial price falls 5% at a pair, 10% at three and 15% at five, each step rounded down to the dollar and applied without a code. A coupon code stacks on top of it.
US stock, international shipping and same-day dispatch
Orders placed before 4PM ET are dispatched the same day, seven days a week, weekends included. Tracking is emailed the same day the parcel leaves, so the number in your inbox belongs to a parcel already in the carrier network rather than to a label printed against an unpacked order. Stock is held in the United States, which is what makes that schedule possible.
US Standard Shipping is $12 and arrives in 2 to 5 business days, free on orders over $150. Expedited 2-3 Day is $39 and Overnight is $95. Standard International is a $40 flat rate arriving in 10 to 20 business days, free on orders of $500 and above, and Express International is a $100 flat rate arriving in 5 to 10 business days.
Storage and handling
Store the sealed lyophilized vial at minus 20C for the long term, or at 2 to 8C while it is in active use, kept out of light. Once bacteriostatic water is added, hold the solution at 2 to 8C and avoid repeated freeze thaw cycles, since the disulfide bond degrades in solution well before the peptide backbone does. Full conditions are set out in storage and handling page, and reconstitution calculator works out the concentration for any reconstitution volume you choose.
Checkout, payment and support
Checkout takes Visa and Mastercard directly on the site and finishes in one pass. There is no wallet handoff, no invoice to wait on and no second confirmation before the order is accepted. Bitcoin, Zelle, Cash App and Venmo are also accepted at checkout. Card details are entered once and the order is placed.
Support replies within one business day. If a parcel arrives damaged or the contents are wrong, email support with the order number and a photo and we replace or refund it. There is no return process to negotiate first.
Order Oxytocin 2mg
Oxytocin 2mg is $28 a vial, lyophilized, held to 98% or higher purity, with 6 vials in stock in the United States. Two vials bring the price to $26 each and five bring it to $23. Order before 4PM ET and it ships today.
Buy five vials at $23 each
Buy Oxytocin 2mgFree Oxytocin research guideBundle pricing is automatic in the cart: $26 a vial at two, $25 at three, $23 at five. No code to enter.
More buying guides
Every compound in the catalog has one of these pages, with the same published pricing and the same dispatch terms.
Frequently asked questions
What is Oxytocin?
Oxytocin is a nine amino acid cyclic hormone, sequence Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2. A disulfide bond between the cysteines at positions 1 and 6 closes a six residue ring, leaving a three residue amidated tail. Formula C43H66N12O12S2, molecular weight 1,007.19 Da, CAS number 50-56-6. It is made in the hypothalamus and released from the posterior pituitary, and its receptor OXTR is a class A G protein coupled receptor. Core Research Peptides lists it as a 2mg lyophilized vial at 98% or higher purity.
Why buy Oxytocin from Core Research Peptides?
Stock is held in the United States and the shelf count is published on the product page, so you know before ordering whether a vial exists. Oxytocin 2mg currently shows 6 vials. Pricing is published in full, with no quote step, no minimum order and no account application, and bundle pricing is applied by the cart rather than by a code you have to find. Dispatch runs seven days a week rather than on business days only. Support replies within one business day.
What purity is your Oxytocin?
Oxytocin 2mg is held to a purity standard of 98% or higher. That is the same standard applied to every compound in the catalog, and material that does not meet it is not listed and not sold. The vial contains lyophilized powder and stays sealed until it is reconstituted in your own laboratory.
How fast do you ship Oxytocin, and what does shipping cost?
Orders placed before 4PM ET are dispatched the same day, seven days a week, and tracking is emailed the same day the parcel leaves. Standard Shipping in the United States is $12 and arrives in 2 to 5 business days, and it is free on orders over $150. Expedited 2-3 Day is $39. Overnight is $95. Because stock sits in the United States, nothing waits on an overseas transfer.
Do you ship Oxytocin internationally?
Yes. Standard International is a $40 flat rate and arrives in 10 to 20 business days, free on orders of $500 and above. Express International is a $100 flat rate and arrives in 5 to 10 business days. International orders are dispatched on the same schedule as domestic ones, before 4PM ET, seven days a week.
Do you offer bundle pricing on Oxytocin?
Yes. Two vials take 5% off the per vial price, three take 10%, and five take 15%, floored to a whole dollar. On Oxytocin 2mg that is $26 a vial at two, $25 at three and $23 at five, for totals of $52, $75 and $115. The cart applies the discount on its own with no code, and a coupon code stacks on top of it.
How should Oxytocin be stored?
The sealed lyophilized vial is stored at minus 20C for the long term, or at 2 to 8C for short-term storage while it is in use, protected from light. Once reconstituted with bacteriostatic water, the solution is held at 2 to 8C, protected from light, and repeated freeze thaw cycles are avoided.
