Isotopically labelledKynurenic-d5 AcidCat. No. P-K014-002CAS 350820-13-2
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Active ingredient · Kynurenic Acid family
Pharmaceutical analytical standardKynurenic Acid
Synonyms: 4-oxo-1H-quinoline-2-carboxylic acid, Kinurenic acid, Kynuronic acid, Quinurenic acid, NSC 58973, Quinaldic acid, 4-hydroxy-, KYNA, Transtorine, Acid, Kynurenic
- Cat. No.
- P-K014-001
- CAS
- 492-27-3
- Alternative CAS
- 52980-29-7 (sodium salt)
- 2439-02-3 (sodium salt)
- 345909-35-5 (hydrate)
- 179637-97-9 (hydrate)
- 13593-94-7 (alternative CAS, same compound)
- Formula
- C10H7NO3
- Molecular weight
- 189.17 g/mol
- Category
- Active ingredient (API)
A tryptophan metabolite formed along the kynurenine pathway: in the brain it blocks glutamate receptors and has neuroprotective and anticonvulsant effects, and its levels are studied in conditions such as schizophrenia and depression.
Did you know?It was discovered in 1853 by the German chemist Justus von Liebig in dog urine: the name combines the Greek kyon, dog, and ouron, urine.
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 Kynurenic Acid family
Isotopically labelledKynurenic-d5 AcidCat. No. P-K014-002CAS 350820-13-2Frequently 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.