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GLP-1 / GIP Dual Agonist · Research Compound

Tirzepatide
Research Compound

A synthetic 39-amino acid dual incretin receptor agonist — the first compound in peer-reviewed literature to co-engage both the GLP-1 receptor and GIP receptor within a single peptide molecule. Available in six research-grade vial sizes with batch-specific COA via Krause Analytical.

5mg · 10mg · 15mg · 20mg · 30mg · 40mg COA via Krause Analytical Sabrina Runbeck, PA-C Catalog Finnrick Pulse Verified ≥98–99% Purity

Chemical Identity

What Is Tirzepatide?

Tirzepatide is a synthetic 39-amino acid peptide engineered as a dual incretin receptor agonist — the first of its class to be studied for simultaneous agonism of both the glucagon-like peptide-1 receptor (GLP-1R) and the glucose-dependent insulinotropic polypeptide receptor (GIPR). The molecule incorporates a C20 fatty diacid moiety via a gamma-glutamic acid linker, a structural modification that enables extended plasma half-life through albumin binding. The peptide sequence is derived from the native GIP hormone with additional modifications to achieve balanced GLP-1R and GIPR activity profiles.

Target 1
GLP-1 Receptor (GLP-1R)
Glucagon-like peptide-1 receptor. Class B1 GPCR. Research focus includes downstream cAMP signaling, receptor internalization kinetics, and β-cell biology in pancreatic research models.
Target 2
GIP Receptor (GIPR)
Glucose-dependent insulinotropic polypeptide receptor. Class B1 GPCR. Peer-reviewed studies have investigated GIPR expression in adipose tissue, bone, and central nervous system research contexts.
  • Peptide class: Synthetic acylated peptide; GLP-1/GIP dual receptor agonist (twincretin)
  • Structure: 39 amino acids; C20 fatty diacid via gamma-glutamic acid/mini-PEG linker; Aib substitutions at positions 2 and 13 for protease resistance
  • Half-life mechanism: Albumin binding via fatty diacid chain; studied for extended duration in receptor binding kinetics research
  • Origin: First described in peer-reviewed literature beginning in the mid-2010s as a dual incretin receptor agonist; Sequence Labs supplies a research-grade analog only
  • Research grade distinction: Sequence Labs tirzepatide is a laboratory research compound — not a pharmaceutical product, not FDA-approved, and not interchangeable with any marketed medicine

Important: Sequence Labs tirzepatide is a research-grade compound intended for in vitro and preclinical laboratory research by qualified researchers only. It is not an FDA-approved pharmaceutical product and is not a substitute for any marketed medicine. For research use only. Not for human use.

Published Research

Research Background

Peer-reviewed literature on tirzepatide has examined a range of receptor pharmacology and incretin biology questions. Published research consistently frames tirzepatide as a mechanistically distinct compound compared to selective GLP-1 mono-agonists, owing to its engagement of the GIPR alongside GLP-1R. The following areas represent the primary domains investigated in published research.

Dual Incretin Receptor Pharmacology
Published research has examined how simultaneous GLP-1R and GIPR co-agonism produces distinct receptor activation profiles relative to single-receptor engagement.
GIP Receptor Signaling
Peer-reviewed studies have investigated GIPR signal transduction, tissue expression patterns, and the downstream intracellular cascades that distinguish GIP from GLP-1 pathway biology.
Receptor Binding Kinetics
Research has characterized tirzepatide's binding affinity, on-rate and off-rate kinetics at both GLP-1R and GIPR targets, and the structural basis for balanced vs. biased agonism.
Combined GLP-1/GIP Pathway Studies
Published studies have explored how concurrent engagement of two incretin receptor pathways produces additive, synergistic, or compensatory downstream effects in research model systems.
Incretin Hormone Research
Broad incretin biology research, including the comparative roles of GLP-1 and GIP as endogenous hormones and how exogenous peptide agonists interact with these native signaling systems.
Twincretin Structural Biology
Structural studies have examined the molecular architecture enabling tirzepatide to bind two distinct class B GPCRs, including cryo-EM and crystallographic investigations of receptor-ligand complexes.

Explore the full body of published research: Search tirzepatide on PubMed →

Available Vial Sizes & Pricing

Sequence Labs Tirzepatide Supply

Research-grade tirzepatide available in six vial sizes for preclinical, in vitro, and laboratory research applications. All vials lyophilized, batch-tested, and shipped with COA documentation.

Vial Size Research Price Purity COA
5mg $48.99 ≥98–99% HPLC + MS ✓ Krause Analytical
10mg $70.99 ≥98–99% HPLC + MS ✓ Krause Analytical
15mg $97.99 ≥98–99% HPLC + MS ✓ Krause Analytical
20mg $128.99 ≥98–99% HPLC + MS ✓ Krause Analytical
30mg $148.99 ≥98–99% HPLC + MS ✓ Krause Analytical
40mg $234.99 ≥98–99% HPLC + MS ✓ Krause Analytical
  • Independent testing: Every batch tested by Krause Analytical (Austin, TX) for identity, purity, and potency via HPLC and mass spectrometry
  • COA transparency: Batch-specific certificates of analysis are publicly accessible and cross-verifiable through Finnrick Pulse
  • Sabrina Runbeck, PA-C: The Sequence Labs catalog is reviewed by a licensed Physician Assistant-Certified (PA-C) for compound integrity and catalog accuracy
  • Lyophilized format: All vials shipped as lyophilized powder for stability during storage and transit; supplied with research data sheet
  • Wholesale available: Tiered pricing for laboratories, research institutions, and qualified researchers — inquire via the wholesale portal

Laboratory Handling

Receiving, Storage & COA

Tirzepatide ships as a sealed lyophilized research vial. Receiving, inventory, and any subsequent laboratory preparation follow your institution’s protocols and the batch Certificate of Analysis. Sequence Labs does not publish reconstitution recipes, solvent volumes, or administration how-to.

Research use only. Tirzepatide from Sequence Labs is intended exclusively for preclinical and in vitro research by qualified researchers. Not for human use, self-experimentation, or clinical application.

  1. 1 Inspect the sealed vial. Confirm the crimp is intact and the lyophilized material is consistent with a sealed research vial before releasing it to inventory.
  2. 2 Match the batch COA. Verify the lot number against the Krause Analytical Certificate of Analysis (cross-checkable via Finnrick Pulse).
  3. 3 Store sealed. Keep lyophilized vials protected from light and moisture. Refrigerated storage is the usual default unless the COA or your SOP specifies otherwise.
  4. 4 Follow institutional SOP. Solvent choice, volumes, and in-use handling are determined by the qualified investigator — not by Sequence Labs.

Common Questions

Tirzepatide Research FAQ

What makes tirzepatide a dual agonist vs. semaglutide?
Semaglutide is a selective GLP-1 receptor agonist — it binds and activates only the GLP-1 receptor (GLP-1R). Tirzepatide is a dual incretin receptor agonist (a "twincretin") that co-engages both the GLP-1 receptor and the glucose-dependent insulinotropic polypeptide receptor (GIPR) within a single 39-amino acid molecule. Published research has investigated how this dual receptor engagement produces distinct downstream receptor signaling profiles compared to mono-agonism. Peer-reviewed studies have examined the GIP receptor's contributions to incretin biology — signaling cascades that selective GLP-1 agents do not engage, making tirzepatide a distinct research tool for studying dual-pathway incretin pharmacology.
Is Sequence Labs tirzepatide a pharmaceutical drug?
No. Sequence Labs tirzepatide is a research-grade compound intended exclusively for in vitro, preclinical, and laboratory research by qualified researchers. It is not a pharmaceutical product, is not FDA-approved for any indication, and is not interchangeable with or a substitute for any marketed medicine.
What sizes does Sequence Labs carry for tirzepatide?
Sequence Labs offers research-grade tirzepatide in six lyophilized vial sizes: 5mg ($48.99), 10mg ($70.99), 15mg ($97.99), 20mg ($128.99), 30mg ($148.99), and 40mg ($234.99). All sizes are produced to the same ≥98–99% purity standard with batch-specific COAs via Krause Analytical (Austin, TX), cross-verified through Finnrick Pulse. Wholesale pricing is available for laboratories and research institutions — visit the wholesale page or email Team@SequenceLabs.Health.
How is Sequence Labs tirzepatide tested and verified?
Every batch of Sequence Labs tirzepatide is independently tested by Krause Analytical (Austin, TX) using HPLC (high-performance liquid chromatography) and mass spectrometry for compound identity, purity percentage, and potency. Batch-specific certificates of analysis (COAs) are publicly accessible and independently verifiable through Finnrick Pulse — researchers can match lot numbers to published test results before or after purchase. The catalog is additionally reviewed by a licensed Physician Assistant-Certified (PA-C) for compound integrity.
Is tirzepatide available for wholesale B2B purchase?
Yes. Research institutions, laboratories, and qualified researchers can access tirzepatide through Sequence Labs' gated wholesale portal. Tiers are structured by per-order spend with no monthly volume commitments, ranging from approximately 18% to 32% below retail across tier levels. To apply or inquire, visit the wholesale page or contact Team@SequenceLabs.Health with your institution details.

Quality Standards

Every batch independently verified

HPLC
Chromatography on every batch
MS
Mass spec identity verification
≥99%
Verified purity standard
COA
Batch certificate, every vial
PA-C
Licensed PA-C catalog review

Ready to source research-grade tirzepatide?

Six vial sizes. Independent batch COA. reviewed by Sabrina Runbeck, PA-C. Wholesale B2B pricing available for licensed institutions.

◆ Apply for Wholesale Access