GLP-1 family

Tirzepatide testing

Identity by mass. Purity by HPLC. Content in mg.

how we confirm identity

4810 .5249 Da

monoisotopic mass · calculated · C225H348N48O68

ions we look for · calculated

Its mass tells it apart from retatrutide and semaglutide. Swaps between these peptides are a known risk.

Mass tells them apart.

Which GLP-1 is in the vial?

Recommended panel

By the form of the product.

Recommended tests for Tirzepatide by product form
Test Lyophilised vial Liquid vial Pen or cartridge Raw powder
Identity LC-MS In the panel In the panel In the panel In the panel
Purity HPLC-UV In the panel In the panel In the panel In the panel
Content per vial mg per vial In the panel In the panel In the panel In the panel
Endotoxin LAL · EU/mg In the panel In the panel In the panel Not in the panel
Sterility USP <71>, 14 days In the panel In the panel In the panel Not in the panel
Counter-ion TFA · acetate Not in the panel Not in the panel Not in the panel In the panel
Water content Karl Fischer Not in the panel Not in the panel Not in the panel In the panel

Chemistry

formula
C225H348N48O68
monoisotopic mass
4810.5249 Da
average mass
4813.53 Da
CAS
2023788-19-2

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