Pharmacopoeial impurityDalfampridine USP Related Compound BCat. No. P-D007-002CAS 84539-34-4
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Active ingredient · Dalfampridine family
Pharmaceutical analytical standardDalfampridine
Synonyms: 4-Aminopyridine, pyridin-4-amine, Fampridine, Avitrol, p-Aminopyridine, Ampyra, gamma-Aminopyridine, Phillips 1861, Avitrol 200, Fampyra, Neurelan, Fampridine-SR, Fampridina, Fampridinum, NSC 15041, Fampridine (4-aminopyridine), Pymadine, Sustained Release, 4-Aminopyridine, Ampyra Extended Release, Pyridine, 4-amino-, Pimadin (free base), Compound 1861, Amaya, Pymadin, Caswell No. 038, EPA Pesticide Chemical Code 069201, Frampridine, Ampydin, Fampridine-PR, Para-aminopyridine, Philips 1861, Fampridine (JAN/INN), Pharmakon1600-01501130, NSC 757845
- Cat. No.
- P-D007-001
- CAS
- 504-24-5
- Alternative CAS
- 51527-87-8 (hydrobromide)
- 158868-13-4 (hydrate)
- 1003-40-3 (hydrochloride)
- 29212-32-6 (alternative CAS, same compound)
- Formula
- C5H6N2
- Molecular weight
- 94.12 g/mol
- Category
- Active ingredient (API)
A sustained-release form of 4-aminopyridine, a potassium channel blocker that prolongs nerve signals; approved in the United States in 2010 to improve walking in multiple sclerosis.
Did you know?The same molecule, 4-aminopyridine, is also used as a bird repellent: birds that eat the bait give out distress calls that make the whole flock fly away.
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.
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Pharmacopoeial impurityDalfampridine USP Related Compound BCat. No. P-D007-002CAS 84539-34-4
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ImpurityDalfampridine Impurity 1Cat. No. P-D007-004CAS 62732-43-8
Impurity1,2-Bis(4-pyridyl)hydrazineCat. No. P-D007-005CAS 19808-51-6
Impurity1,3-Di(pyridin-4-yl)-UreaCat. No. P-D007-006CAS 39642-87-0
Impurity3-CyanopyridineCat. No. P-D007-007CAS 100-54-9
Impurity4-Amino-3-Chloro-PyridineCat. No. P-D007-008CAS 19798-77-7
Impurity4-Amino-3-Hydroxy-PyridineCat. No. P-D007-009CAS 52334-53-9Frequently 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.