Active ingredientBiperidenCat. No. P-B085-001CAS 514-65-8
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Pharmacopoeial impurity · Biperiden family
Pharmaceutical analytical standardBiperiden EP Impurity A
Synonyms: endo-biperiden, Biperiden, endo-, Biperiden impurity A CRS
- Cat. No.
- P-B085-004
- CAS
- 2985510-53-8
- Alternative CAS
- N/A
- Formula
- C21H29NO
- Molecular weight
- 311.47 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Biperiden
An anticholinergic synthesised in Germany by chemist W. Klavehn and approved in the United States in 1959: it is used against the symptoms of Parkinson's disease and the movement disorders caused by some antipsychotics.
Did you know?Its molecule contains an unusual bicyclic skeleton, norbornene, a small 'cage' of seven carbon atoms. It is on the World Health Organization's List of Essential Medicines.
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.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- Biperiden impurity A CRSEP B1121000
More products in the Biperiden family
Active ingredientBiperidenCat. No. P-B085-001CAS 514-65-8
Active ingredientBiperiden HydrochlorideCat. No. P-B085-003CAS 1235-82-1
Pharmacopoeial impurityBiperiden EP Impurity BCat. No. P-B085-006CAS 2984471-08-9
Pharmacopoeial impurityBiperiden EP Impurity CCat. No. P-B085-008CAS 2748308-78-1
Pharmacopoeial impurityBiperiden EP Impurity D HClCat. No. P-B085-010CAS 93778-70-2
Pharmacopoeial impurityBiperiden EP Impurity E HClCat. No. P-B085-011
Isotopically labelledBiperiden EP Impurity A-d5Cat. No. P-B085-012
Isotopically labelledBiperiden EP Impurity B-d5Cat. No. P-B085-013Frequently 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.