Description
PrymaLab · Research use only
Tirzepatide 100mg
Tirzepatide 100 mg, the largest vial in the range, about 20.8 µmol
Tirzepatide is a synthetic peptide agonist of two incretin receptors, GIP and GLP-1, made of 39 residues with a fatty diacid on lysine 20 and an amidated C-terminus. This is the largest fill PrymaLab sells: 100 mg of white lyophilized powder in one sealed vial. Its literature runs from receptor signalling to structure and diabetes trials.
Specifications
| Property | Value |
|---|---|
| Compound | Tirzepatide LY3298176; GIP/GLP-1 receptor dual agonist |
| CAS number | 2023788-19-2 |
| Molecular formula | C225H348N48O68 |
| Theoretical mass | 4813.5 Da |
| Sequence / structure | H-Y-Aib-EGTFTSDYSI-Aib-LDKIAQK(2×AEEA-γGlu-C20 diacid)AFVQWLIAGGPSSGAPPPS-NH₂ (39 residues; Aib2 and Aib13; Lys20 acylated with eicosanedioic acid via γ-Glu and two AEEA spacers; C-terminal amide) |
| Label claim | 100 mg/vial |
| Form | Lyophilized (freeze-dried) powder or cake in a sealed glass vial with a rubber stopper and aluminium crimp cap |
| Storage, sealed | −20 °C, desiccated, dark |
| Purity specification | 99.0% or higher by RP-HPLC |
| Lot certificate | Results for the lot now shipping are in the certificate panel on this page |
| Safety data sheet | PL-SDS-173 |
Other fills
This is the 100 mg fill. The Tirzepatide 10mg page is the main listing for this compound, with the full research summary and every fill side by side. Other fills: 5 mg, 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg, 80 mg.
Keeping moisture out
The certificate for each lot reports its water content by the Karl Fischer method, and the panel on this page shows the figure for the lot now shipping. To keep further water out, hold the sealed vial at −20 °C, desiccated and dark, and let it warm to room temperature before opening so condensation does not form on the cold powder.
What the research covers
Tirzepatide engages the GIP receptor more strongly than the GLP-1 receptor and shows signalling bias at the latter, according to Willard and colleagues1. A 100 mg vial adds only quantity, kept as a solid, and Wang’s review of freeze-dried proteins notes that a solid can still have limited long-term storage stability even after successful lyophilization2. The Tirzepatide 10 mg page holds the full research summary.
The Retatrutide vs Tirzepatide guide covers the literature in more depth.
How each lot is tested
Every lot is tested in PrymaLab’s own laboratory in Ashland, Kentucky before release: RP-HPLC for purity, LC-MS for identity, Karl Fischer titration for water, LAL for endotoxin and USP <71> for sterility. The results for the lot now shipping are in the certificate panel on this page, and the certificate number, key and QR code can be checked on the verify page. These are in-house results from PrymaLab Analytical, not an independent test, and the lab is not accredited to ISO 17025. The third-party testing guarantee on this page still applies: if any independent laboratory finds the wrong compound, or less than the stated purity or amount, the order is refunded and the cost of the test is reimbursed.
Frequently asked questions
How much peptide is 100 mg in micromoles?
About 20.8 µmol, using the theoretical mass of 4813.5 Da on the certificate. Residual water in the powder makes the real amount a little smaller.
Is the largest fill tested any differently?
No. It goes through the same five release tests as every other size, listed in the testing section below, and is made as its own lot under its own certificate number.
References
- Willard FS, Douros JD, Gabe MB, et al. Tirzepatide is an imbalanced and biased dual GIP and GLP-1 receptor agonist. JCI Insight. 2020;5(17). DOI · PubMed
- Wang W. Lyophilization and development of solid protein pharmaceuticals. Int J Pharm. 2000;203(1-2):1-60. DOI · PubMed
Research use only
For laboratory research use only. Tirzepatide 100mg is not a drug, food, cosmetic or dietary supplement, is not approved by the FDA or any comparable authority for human or veterinary use, and must not be given to people or animals. It is sold to qualified researchers and institutions, and the buyer is responsible for lawful handling and disposal.
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