TIRZ-2 20mg

Our TIRZ-2 20mg vial holds 20mg of lyophilized TIRZ-2 (tirzepatide), a dual GIP and GLP-1 receptor agonist. It’s intended for lab research only.

TIRZ-2 is our code name for tirzepatide. The compound inside the vial is tirzepatide, and everything below describes it.

About TIRZ-2 (tirzepatide)

Tirzepatide is a 39-amino-acid peptide from Eli Lilly that activates two receptors, GIP and GLP-1. A fatty acid side chain lets it bind albumin, so its half-life is about five days. It’s approved as Mounjaro for type 2 diabetes and as Zepbound for weight management.

TIRZ-2 mechanism of action

Tirzepatide activates two incretin receptors. GIP and GLP-1 are both released by the gut after eating, and both push the pancreas to release insulin when glucose is high. GLP-1 also slows stomach emptying and acts on appetite centers in the brain.

The molecule is built on the GIP sequence and tuned to hit the GLP-1 receptor as well. It leans toward GIP in binding strength. A C20 fatty diacid lets it ride on albumin, so it lasts days instead of minutes.

TIRZ-2 20mg product details

• Compound: TIRZ-2 (tirzepatide)
• Also known as: LY3298176
• CAS number: 2023788-19-2
• Molecular formula: C225H348N48O68
• Molar mass: 4,813.5 g/mol
• Structure: 39 amino acids with a C20 fatty diacid side chain
• Amount: 20mg per vial
• Form: lyophilized (freeze-dried) powder
• Label: compound name and amount printed on every unit
• SKU: TIRZ2-20
• Use: laboratory research only

TIRZ-2 research

The SURMOUNT-1 trial (New England Journal of Medicine, 2022) reported average weight loss of up to about 21% over 72 weeks at the highest dose. The SURPASS trials covered blood sugar control in type 2 diabetes.

For the original studies, try this PubMed search from the National Library of Medicine.

TIRZ-2 compared with similar compounds

Here’s how TIRZ-2 20mg fits among related compounds. TIRZ-2 adds GIP receptor activity to GLP-1, a dual agonist with larger weight effects than semaglutide in trials. By comparison:

• SEMA-1 acts on the GLP-1 receptor only and lasts about a week, the most studied compound in the group
• RETA-3 hits GLP-1, GIP and glucagon receptors, the triple agonist with the biggest phase 2 numbers so far
• Survodutide is another GLP-1 and glucagon dual agonist, in phase 3 for obesity and the liver disease MASH
• CAG-4 works through amylin receptors instead of incretins, often studied next to or with semaglutide

The main difference between these compounds is which receptors they hit. Pick the one that matches the receptor question in your study, and use the others as comparisons. See them all on our GLP-1 peptides page.

Reconstituting TIRZ-2 20mg

The amount of liquid you add sets the concentration. For a vial holding 20mg:

• 1mL of bacteriostatic water gives 20mg/mL
• 2mL of bacteriostatic water gives 10mg/mL
• 3mL of bacteriostatic water gives 6.67mg/mL

Pick the volume that keeps your own calculations simple, then write the concentration and the mixing date on the label.

Bacteriostatic water is the usual choice, and acetic acid helps with peptides that won’t dissolve in water alone. Add it slowly so it runs down the side of the vial, then swirl or roll until everything dissolves. Shaking can shear peptide chains. Skip it.

How to store TIRZ-2 20mg

The dry powder keeps best cold and dark. A freezer at -20°C is right for long-term storage. After reconstitution, store it in the fridge at 2 to 8°C and finish it within roughly four weeks.

Let a frozen vial warm up to room temperature before you open it. Cold glass pulls moisture out of the air, and moisture is what degrades dry peptide.

Checking your TIRZ-2 20mg

Every TIRZ-2 20mg vial carries a printed label with the compound name and amount, so you always know what you’re holding. If your lab needs batch paperwork for its records, contact Peptira support before you order and ask what’s available for the current batch.

If you verify incoming material yourself, the standard methods are HPLC for purity and mass spectrometry for identity. HPLC splits the sample and reports the main peak as a percentage, while mass spec confirms that peak has the right molecular weight.

If you run a long study, try to order everything you need at once and log it when it arrives. It removes one variable from your results.

Choosing a TIRZ-2 strength

• TIRZ-2 10mg: $89.00, about $8.90 per mg
• TIRZ-2 20mg (this page): $129.00, about $6.45 per mg
• TIRZ-2 30mg: $159.00, about $5.30 per mg
• TIRZ-2 60mg: $199.00, about $3.32 per mg

For longer projects a larger vial like TIRZ-2 20mg means fewer vials to mix and fewer reorders.

Related to TIRZ-2 20mg

• RETA-3 30mg, a triple agonist
• SEMA-1 20mg, a GLP-1 agonist
• CAG-4 10mg, an amylin analog
• Survodutide 10mg, a GLP-1/glucagon agonist
• SLU-PP-332 BAM-15 Capsules, a capsule format

Browse the full GLP-1 peptides and weight loss peptides range, see every vial on our research peptides page or head back to the Peptira home page.

TIRZ-2 20mg questions

How much is in the TIRZ-2 20mg vial?

20mg of freeze-dried powder. The amount is printed on the label.

What is TIRZ-2?

TIRZ-2 is our catalog name for tirzepatide. The vial holds tirzepatide as freeze-dried powder.

What do I mix TIRZ-2 20mg with?

Sterile bacteriostatic water is the usual choice. The reconstitution section above shows the concentration for each volume.

How should I store it?

Keep sealed vials in the freezer at -20°C. Once mixed, refrigerate at 2 to 8°C and use within about 28 days.

Can TIRZ-2 be used in people or animals?

No. It’s sold for laboratory research only and isn’t approved for human or veterinary use.

Buy TIRZ-2 20mg online

Ready to order? TIRZ-2 20mg costs $129.00 and is in stock. Use code PEPTIRA10 for 10% off, pay with crypto for a further discount, and shipping costs nothing wherever you are. Need water to mix it? Add bacteriostatic water to the same order.

Need more for the same project? See the rest of our GLP-1 peptides and weight loss peptides, or go back to the Peptira home page.

For laboratory research use only. Not for human or veterinary use. These statements have not been evaluated by the FDA.