Active ingredientLetermovirCat. No. P-L037-001CAS 917389-32-3
Drag to rotate
Impurity or related compound · Letermovir family
Pharmaceutical analytical standardLetermovir Impurity 13
Synonyms: Methyl 2-[(4S)-8-fluoro-3-[2-methoxy-5-(trifluoromethyl)phenyl]-2-piperazin-1-yl-4H-quinazolin-4-yl]acetate
- Cat. No.
- P-L037-024
- CAS
- 2864441-31-4
- Alternative CAS
- N/A
- Formula
- C23H24F4N4O3
- Molecular weight
- 480.46 g/mol
- Category
- Impurity or related compound
Family: Letermovir
An antiviral against cytomegalovirus (CMV), approved in the United States in 2017 to prevent infection after haematopoietic stem cell transplantation and, since 2023, also in high-risk kidney transplants.
Did you know?It has an unusual target: the terminase complex, which cuts the long chain of DNA made by the virus into single genomes to be packed into new viral particles.
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 Letermovir family
Active ingredientLetermovirCat. No. P-L037-001CAS 917389-32-3
Isotopically labelledLetermovir-d3Cat. No. P-L037-002
Isotopically labelledLetermovir-d6Cat. No. P-L037-003
Isotopically labelledLetermovir-d8Cat. No. P-L037-004CAS 1961287-35-3
NitrosamineN-Nitroso Letermovir Impurity 1Cat. No. P-L037-005
NitrosamineN-Nitroso Letermovir Impurity 2Cat. No. P-L037-006
ImpurityLetermovir Impurity 1Cat. No. P-L037-008CAS 917389-23-2
Impurity2-Fluoro-6-nitrobenzaldehydeCat. No. P-L037-009CAS 1644-82-2Frequently 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.