When sourcing T-GLP2 as a research material, what matters is a batch-specific Certificate of Analysis, HPLC purity, and mass-spectrometry identity confirmation showing the material is tirzepatide, a dual GIP/GLP-1 receptor agonist (CAS 2023788-19-2) studied in vitro. "GLP-2" and "T-GLP2" are catalog names, not a receptor class. This guide covers what to check.
Is T-GLP2 a GLP-2 receptor peptide?
No. T-GLP2 (also written GLP-2, GLP2, GLP-2 T or GLP 2T) is an industry catalog naming convention for tirzepatide, parallel to the way "GLP-3 RT" and "RT-GLP3" are catalog names for retatrutide. The material is a synthetic dual agonist of the GIP receptor and the GLP-1 receptor. It is not the proglucagon-derived GLP-2 hormone and it is not a GLP-2 receptor analog. The in-vitro pharmacology is covered in tirzepatide as a dual GIP/GLP-1 agonist in vitro, and the numbering logic is explained in glucagon-like peptide classes explained.
| Identity field | T-GLP2 listing |
|---|---|
| Compound | Tirzepatide |
| Catalog names | T-GLP2, GLP-2, GLP2, GLP-2 T, GLP 2T |
| Targets (in vitro) | GIP receptor and GLP-1 receptor |
| CAS number | 2023788-19-2 |
| Molecular formula | C225H348N48O68 |
| Molecular weight | about 4813 g/mol |
Batch-specific COA
A strong COA is tied to the exact lot you receive, with dated analytical data reporting identity, purity, and methods — not a generic spec sheet. Check that the CAS number and formula on the report match the table above, not just the name on the vial.
Purity by HPLC
HPLC separates the sample and reports the percentage that is the target compound; a clean dominant peak indicates high purity.
Identity by mass spectrometry
Mass spectrometry confirms the measured molecular weight matches the expected value (about 4813 g/mol for tirzepatide), confirming identity independent of the catalog label.
Where to source it
Happy Peptides supplies T-GLP2 (tirzepatide) as a research material with batch documentation.
Find a COA: every T-GLP2 batch report is listed in our certificate of analysis library, searchable by batch number.
Related research guides
- Tirzepatide: dual GIP/GLP-1 agonist in vitro
- Glucagon-like peptide classes explained
- Evaluating a research-compound supplier
- Sourcing tesamorelin
- Sourcing ipamorelin
- Sourcing oxytocin
- Sourcing SS-31
Research-use note
All materials discussed are supplied for in vitro laboratory research use only, and are not for human or animal use.








