Active ingredientBepotastine BesylateCat. No. P-B051-001CAS 190786-44-8
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Impurity or related compound · Bepotastine family
Pharmaceutical analytical standard(R)-Bepotastine Besylate
Synonyms: Bepotastine (Beslilate), Bepotastine Besylate (R)-Isomer
- Cat. No.
- P-B051-005
- CAS
- 190730-42-8
- Alternative CAS
- 190730-41-7 (free base)
- 1160415-45-1 (tosylate)
- Formula
- C21H25ClN2O3·C6H6O3S
- Molecular weight
- 547.06 g/mol
- Category
- Impurity or related compound
Family: Bepotastine
A second-generation H1 antihistamine developed in Japan, where it has been used since 2000 for allergic rhinitis and since 2002 for urticaria and itching; as eye drops it has been approved in the United States since 2009 for allergic conjunctivitis.
Did you know?Besides blocking H1 receptors, it curbs the release of histamine from mast cells, the immune cells that keep it in store.
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 Bepotastine family
Active ingredientBepotastine BesylateCat. No. P-B051-001CAS 190786-44-8
Isotopically labelledBepotastine-d6Cat. No. P-B051-002CAS 2469626-70-6
Isotopically labelledRac-Bepotastine-d6Cat. No. P-B051-003
Impurity(R)-BepotastineCat. No. P-B051-004CAS 190730-41-7
ImpurityBepotastine Impurity ACat. No. P-B051-006CAS 201594-84-5
ImpurityBepotastine Impurity A TartrateCat. No. P-B051-007CAS 210095-58-2
ImpurityBepotastine Ethyl Ester BesylateCat. No. P-B051-008CAS 190730-39-3
ImpurityBepotastine Impurity 1Cat. No. P-B051-009Frequently 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.