Incretin & Amylin Analogues

Retatrutide 20mg laboratory research compound

CAS2381089-83-2

FormulaC221H342N46O68

Mol. weight4731.36 Da

Quantity20mg/vial

Purity99.2% HPLC

IdentityConfirmed

ReportBy email on request

StockIn stock

Retatrutide 20mg

Name: Retatrutide 20mg
Brand: Pepta Labs
SKU: retatrutide-20mg
Price: 104.86 USD
Availability: InStock

20mg/vial

Retatrutide 20mg is Pepta Labs' listing for sealed glass vials that each hold the supplier-stated 20 mg of retatrutide as lyophilized powder, sold singly or in multi-vial packs for laboratory research and shipped free to US addresses. The same compound is also listed in 10 mg, 15 mg, 30 mg and 60 mg vials, each on its own page. The HPLC purity and mass-spectrometry identity report is sent by email on request, before you order if you want to read it first.

Retatrutide 20mg: $104.86 per vial ($5.24 per mg of the supplier-stated 20 mg). Ships to US addresses only. Retatrutide 20mg (Retatrutide (LY3437943)) is a lyophilized research compound supplied as 20mg of dry powder per sealed vial. CAS 2381089-83-2; molecular formula C221H342N46O68; molecular weight 4731.36 Da. Purity is reported as 99.2% by reversed-phase HPLC and identity is confirmed by mass spectrometry; the analytical report is available by email. Supplied for laboratory research use only.

99.2% pure Identity confirmed

$104.86

$5.24 per mg

Free US shipping · Most orders ship the next business day

Pack size and price

Other quantities of this compound

10mg/vial $85.08 15mg/vial $91.55 Out of stock 30mg/vial $129.84 Out of stock 60mg/vial $198.82

Quantity

Checkout uses a free account with a confirmed email.

Code FALL25: 25% off at checkout.

Free US shipping, no minimum

Most orders ship the next business day as dry powder at ambient temperature. Unopened products in original sealed condition may be returned within 30 days of delivery with return authorization.

Report by email before you order

Independent HPLC purity and MS identity report on request. Pepta Labs does not test in-house.

Payment methods

Pepta Labs accepts Cash App, Venmo, Zelle, Bitcoin and Ethereum (5% crypto discount). Payment instructions are emailed as soon as you place your order.

Research use only

Not for human or animal use. Certified at checkout from a registered account.

Specifications

Retatrutide 20mg at a glance

Retatrutide 20mg is supplied as lyophilized powder in a sealed glass vial for laboratory research only. It is not for human or animal use, consumption, administration, diagnosis or treatment.

Full name: Retatrutide (LY3437943)
Quantity: 20mg/vial
CAS number: 2381089-83-2
Molecular formula: C221H342N46O68
Molecular weight: 4731.36 Da
Purity: 99.2% by HPLC
Identity: Confirmed by mass spectrometry
Physical form: Lyophilized (freeze-dried) powder, sealed glass vial
Report: Sent by email on request, before you order if you want to see it first.
Not claimed: Sterility, endotoxin or LAL, potency, pharmaceutical-grade, cGMP, contaminant-panel or vial fill-quantity testing
Category: Incretin & Amylin Analogues

Handling

Storage, form and restrictions

Shipping: Ships at ambient temperature with no cold pack and no insulated packaging. No cold chain is required for dry powder.
Storage: Refrigerate at 2–8°C on arrival, or hold at −20°C for long-term storage. Keep sealed vials away from light and moisture.
Research use only: Offered solely for laboratory research. Not for human or animal use, consumption, administration, diagnosis or treatment. See the research use policy.

Documentation

Before you order

What are research peptides? Retatrutide Vial Sizes, Price per mg and Identity (LY3437943) All Incretin & Amylin Analogues compounds How to Read a Peptide COA HPLC and Mass Spectrometry Testing and Documentation Research Use Policy

Questions

Retatrutide 20mg — common questions

Where can I buy retatrutide 20mg online in the US?

On this page. Pepta Labs sells retatrutide 20mg as sealed vials of lyophilized research material, singly or in multi-vial packs, and ships to US addresses only, free with no minimum. Orders are placed from a free account with a confirmed email.

What is in a 20mg vial of retatrutide as supplied?

One sealed glass vial of freeze-dried retatrutide powder labeled 20 mg, which is the supplier-stated quantity; multi-vial packs contain several such vials, each sealed and labeled separately. The label names the compound, the quantity and the research-use designation; it carries no lot or batch number. Net peptide content is not reported per listing, and vial fill-quantity testing is not claimed.

Is there an HPLC or COA report for retatrutide 20mg?

Yes. The report gives independent RP-HPLC purity as an area-% figure and mass-spectrometry identity for the sampled production run the listing was sourced from. It is sent by email on request, before ordering if you want: request it on this page or email support@peptalabs.com. It covers the sampled run, not an individual vial, and it is not a lot-specific certificate. The Learn guide How to Read and Verify a Peptide Certificate of Analysis (COA) explains each field.

Is this retatrutide a certified reference standard?

No. It is research-grade lyophilized material documented by the HPLC purity and mass-spectrometry identity report for the sampled production run. It is not a pharmacopeial or certified reference standard and does not come with a lot-specific certificate.

Which other retatrutide vial sizes does Pepta Labs list?

Retatrutide is also listed as 10 mg, 15 mg, 30 mg and 60 mg vials. Each size is a separate listing with its own page; the compound and CAS number are the same, and the listings differ in the stated quantity per vial. The Learn guide on retatrutide vial sizes and identity puts all five side by side.

How should a sealed retatrutide 20mg vial be stored?

Keep the sealed vial of dry powder refrigerated at 2-8 °C on arrival, or at -20 °C for long-term storage, away from light and moisture. It ships at ambient temperature because the lyophilized solid needs no cold pack in transit. The Learn guide Storage Temperature and Handling of Lyophilized Research Peptides (Dry Powder) covers the reasoning.

What does Retatrutide 20mg cost?

Retatrutide 20mg starts at $104.86 per vial. 3-vial packs are 7% off, 5-vial packs are 14% off and 10-vial packs are 35% off. US shipping is free with no minimum.

What payment methods are accepted?

Pepta Labs accepts Cash App, Venmo, Zelle, Bitcoin and Ethereum (5% crypto discount). Payment instructions are emailed as soon as you place your order.

Is this for human or animal use?

No. Retatrutide 20mg is offered solely for laboratory research and is not for human or animal use, consumption, administration, diagnosis or treatment. Buyers certify this at checkout.

All Incretin & Amylin Analogues compounds →