ImpurityD-Gln19-Tirzepatide (Sodium Salt)Cat. No. P-T135-004
Active ingredient · Tirzepatide family
Pharmaceutical analytical standardTirzepatide
Synonyms: Mounjaro, Zepbound
- Cat. No.
- P-T135-001
- CAS
- 2023788-19-2
- Alternative CAS
- 2933217-72-0 (other form)
- Formula
- C225H348N48O68
- Molecular weight
- 4813.53 g/mol
- Category
- Active ingredient (API)
A peptide that activates the receptors of two gut hormones, GIP and GLP-1, together, regarded by the FDA as first in its class. Approved for type 2 diabetes in the United States in May 2022 and in the European Union in September 2022; in the United States also for obstructive sleep apnoea since 2024.
Did you know?It is a 39-amino-acid peptide modelled on the human hormone GIP, with a 20-carbon fatty acid chain that binds it to blood albumin and prolongs its action.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Tirzepatide family
ImpurityD-Gln19-Tirzepatide (Sodium Salt)Cat. No. P-T135-004
ImpurityD-Gln24-Tirzepatide (Sodium Salt)Cat. No. P-T135-005
ImpurityD-Leu26-Tirzepatide (Sodium Salt)Cat. No. P-T135-008
ImpurityD-Ser11-Tirzepatide (Sodium Salt)Cat. No. P-T135-009
ImpurityD-Ser8-Tirzepatide (Sodium Salt)Cat. No. P-T135-010Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.