Opens in a new tab
Home  ›  Endocrine Peptides  ›  PT-141
View COAs

Third-party lab tested

Lab report published:

PT-141

For research and laboratory use only. Not for human or animal consumption.

Dosage
Country of origin
Quantity
This option is currently unavailable. Please choose another.
Fast & Secure
Shipping
Third-Party
Lab Tested
Wrong or damaged?
Reship or refund

Storage & handling: Store at 2–8 °C (≤ –20 °C long-term), away from light. Ships at ambient temperature.

Research & Education Tool

Peptide Dosage Calculator

Enter the vial amount, diluent volume, and target amount to estimate concentration, the draw volume on a U-100 syringe, and approximate vial yield.

For research and educational use only. Check all values against the product label, certificate of analysis, and any applicable professional guidance before relying on the result.

mg Common targets

Concentration - mcg / mL
Volume per Dose - -
Estimated Draws / Vial - rounded down to whole draws

Draw Reference

Enter values to estimate the syringe mark.

0 - - - -

Buy PT-141 peptide exclusively for research applications in qualified laboratories and academic institutions. Our platform provides secure ordering processes for institutional buyers and research coordinators. We offer discreet and reliable delivery to research facilities nationwide. The formulation is available in standardized configurations to support various research requirements. When you order PT-141 peptide through our system, complete quality documentation is included. This product cannot be sold for human consumption or veterinary applications. No prescription is required for qualified research institutions to buy PT-141 peptide online.

Included

Express tracked

$25 per order · delivery in 3–5 days
  • Tracked door to door, dispatched within 24–48 business hours
  • Ambient shipping, safe for lyophilized peptides
Included

Regular tracked

$15 per order · delivery in 5–10 days
  • Free on orders over $200
  • Tracked door to door, dispatched within 24–48 business hours

Lab report for lot

View all lab reports

No certificate is on file for the 5 mg option yet. On file for:

Batch tests: Purity, Endotoxins

2 lab reports available to signed-in researchers.

  • CAS: 189691-06-3
  • Chemical Formula: C₅₀H₆₈N₁₄O₁₀
  • Molecular Weight: 1025.182 g/mol
  • Peptide Sequence: Ac-Nle-Asp(1)-His-D-Phe-Arg-Trp-Lys(1)
  • Synonyms: PT141
  • Shelf life: 24 months from the manufacturing date.

 

PT-141 is a synthetic peptide consisting of seven amino acids in sequence. This heptapeptide is designed to interact with specific molecular receptor systems. Heptapeptide means a peptide containing exactly seven amino acid units. Receptor signaling means the process by which peptides trigger cellular responses. Cellular responses occur when receptors bind to peptides and initiate molecular changes. Signaling peptides are studied in research to understand molecular communication mechanisms. Molecular communication describes how cells exchange information through chemical messengers. Researchers investigate how synthetic peptides interact with melanocortin receptor systems. Melanocortin receptors are protein structures studied in experimental research models. Laboratory research examines peptide binding patterns, selectivity, and structural characteristics.

Read the lot first.

Identity confirmed

LC-MS confirms the molecule in the vial is PT-141.

Purity measured

The same LC-MS run measures the share that is the target peptide.

Endotoxin screened

A LAL screen checks bacterial endotoxin against a limit.

Lot-linked report

Each report names the lot it was run on.

Each lab report is tied to its lot.

Reports are issued by independent labs and name the lot they were run on.

How we test
Elv lot vial

Lab report, for the lot tested.

Lot numberPrinted on the report, so you can see which lot was tested.

From synthesis to a published report

The steps behind each certificate.

See how we test
Step 1

Synthesis and lyophilization

Synthesized and freeze-dried in US facilities, then given a lot number.

Step 2

Samples go to third-party labs

Finished vials from the lot are sent to independent labs.

Step 3

LC-MS: identity, purity, net content

One run confirms the molecule and measures its purity.

Step 4

LAL endotoxin screen

Bacterial endotoxin is checked against a 0.5 EU/mL limit.

Step 4

Certificate published

The summary goes on the product page; full PDFs are for signed-in researchers.

Store at 2 to 8 °C. Keep sealed and away from light until use.

Free shipping over $200

Save up to 25%.

Build the researcher’s box: any compounds, any doses, one order, and every vial costs less.

Elv vials 4of8
3 vials
save 5%
Elv vials 6of8
12 vials
save 15%
Elv vials 8of8
50 vials
save 25%
Build my box

Delivered tracked, every order.

PT-141

Shipping options

Dispatched in 24–48 business hours.

Regular tracked$15 per order · 5 to 10 days

Express tracked$25 per order · 3 to 5 days

Free shippingRegular over $200 · express over $400, after discounts

Testing that sets a higher standard.

Certificates come from independent labs, and each result sits next to its method.

Independent labs
Identity and purity by LC-MS
Endotoxin by LAL screen

Researchers often ask

You might also like

L-Glutathione

L-Glutathione

Bioregulator Peptides
$55.00
Kisspeptin

Kisspeptin

Endocrine Peptides
From $40.00
Tirzepatide

Tirzepatide

Metabolic Peptides
From $95.00
NAD+

NAD+

Bioregulator Peptides
From $90.00

The Lab Journal

All articles
Thymic Peptides

Cytokine Expression Assays in Thymic Peptide Research

Introduction Cytokine expression assays are laboratory methods used to detect and quantify cytokines that cultured cells release or produce. A…

Nov 2, 2026
· 8 min read
Thymic Peptides

Thymic Peptides and T-Cell Differentiation Models

Thymic peptides are short chains of amino acids studied in relation to the thymus, the organ where T cells mature.…

Oct 30, 2026
· 9 min read
Thymic Peptides

LL-37 in Antimicrobial Peptide Research

LL-37 is a frequently studied antimicrobial peptide in laboratory research. The compound is a 37-amino-acid peptide derived from the human…

Oct 28, 2026
· 11 min read
Secretagogues

The GHRP Family in Peptide Research (GHRP-6, GHRP-2, Hexarelin)

GHRP-6, GHRP-2, and Hexarelin are synthetic growth-hormone-releasing peptides studied in ghrelin receptor research. Although they belong to the same family,…

Oct 14, 2026
· 12 min read
Certificate of analysis

PT-141

✕
COA #12629 · 10 mg · Lot 395407 LATEST
Received Mar 28, 2026 · Analysed Mar 28, 2026 · Dr. Victor Ugur · BioRegen

PT-141 C50H68N14O10 · 1025.182 g/mol · CAS 189691-06-3

IdentityConfirmed PT-141PASS
Purity99.51% spec >99%PASS
Net content12.07 mg labeled 10 mgPASS
AppearanceWhite lyophilized
MethodLC-MS (liquid chromatography with mass spectrometry)
LC-MS chromatogram
0255075100Retention time →Relative abundance (%)
Full-scan mass spectrum
Mass spectrum from the laboratory report
Sign in to download the PDF
Endotoxin (LAL)
Charles River Endosafe nexgen-PTS · BioRegen
ReportDosageLotTestedResultLimitStatus
NC-ENDO-04022026-36710 mg395407Apr 1, 2026≤ 0.05 EU/mL0.5 EU/mLPASS
Signed laboratory reports

Welcome to the lab.

Research peptides with third-party lab testing. Sold strictly for in-vitro laboratory research and reserved for researchers aged 21 or older.

Enter Elivena →

Not for human or veterinary use. Not evaluated by the FDA. See our Terms and Privacy Policy.

Not here for research? Leave the site