5-Hydroxy-Pyrazinamide CAS 13924-96-4
| CAS No. | 13924-96-4 |
| Molecular Formula | C5H5N3O2 |
| Molecular Weight | 139.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H5N3O2, 5-Hydroxy-Pyrazinamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 139.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
5-Hydroxy-Pyrazinamide (CAS 13924-96-4), molecular formula C5H5N3O2 and molecular weight 139.11 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H5N3O2 |
| Molecular Weight | 139.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |
Related Hydroxy Standards
- 3-Hydroxy-4-pyridinecarboxylic acid, 97% (CAS 10128-71-9)
- 4-Hydroxy-3-pyridinecarboxylic Acid (CAS 609-70-1)
- 5-Hydroxy Nicotinic Acid (CAS 27828-71-3)
- 6-Hydroxy-2-pyridinecarboxylic Acid (CAS 19621-92-2)
- 3-Hydroxy-2-pyridinecarboxylic Acid (CAS 874-24-8)
- 2-Hydroxy-4,4,4-trifluorobutyronitrile (CAS 912578-73-5)
- 5-Hydroxy-2-methoxy-4-methylpyridine (CAS 1086389-80-1)
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Recommended Standards
- 4-Nitropyridin-3-amine (CAS 13505-02-7)
- 2-Amino-6-oxo-1,6-dihydropyrimidine-5-carbaldehyde (CAS 1402401-43-7)
- 1-Cyano-3-oxocyclobutane-1-carboxylic acid (CAS 1342068-60-3)
- 2-Methyl-5-nitropyrimidine (CAS 14080-34-3)
- 1868-80-0 2,3,4,5-TETRAFLUORO-6-CHLOROBENZOIC ACID 2-CHLORO-3,4,5,6-TETRAFLUOROBENZOIC ACID 6-Chloro-2,3,4,5-tetrafluorobenzoic acid AS01902 (CAS 1868-80-0)
- Sodium 2H-1,3-benzodioxole-5-sulfinate (CAS 253594-68-2)
- 2,5,7-trichloro-8-fluoro-3H-pyrido[4,3-d]pyrimidin-4-one (CAS 2836267-81-1)
- 4-bromo-1,1-difluorocyclohexane (CAS 1196156-51-0)
- 3-((1-Phenoxypropan-2-yl)oxy)propan-1-ol (CAS 1823566-66-0)
- 6-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-amine (CAS 27471-24-5)
- tert-Butyl 4-(dimethylamino)-4-(trifluoromethyl)piperidine-1-carboxylate (CAS 2227206-58-6)
- 6-mercaptopyridine-3-sulfonamide (CAS 10298-20-1)
- Sulbactam Impurity 22 (CAS 288-35-7)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
Why CATO?
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