4-Hydroxy-2-nitropyridine CAS 101654-28-8
| CAS No. | 101654-28-8 |
| Molecular Formula | C5H4N2O3 |
| Molecular Weight | 140.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Hydroxy-2-nitropyridine (CAS 101654-28-8) is a high-purity analytical reference standard with the molecular formula C5H4N2O3 and a molecular weight of 140.10 g/mol.
Structurally, 4-Hydroxy-2-nitropyridine (C5H4N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 140.10 g/mol, it falls into the low-molecular-weight range. 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).
CATO manufactures 4-Hydroxy-2-nitropyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4N2O3 |
| Molecular Weight | 140.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1986 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 3-Hydroxy-4-nitropyridine (CAS 13505-06-1)
- 5-Hydroxy-2-nitropyridine (CAS 15206-26-5)
- 3-Hydroxy-5-nitropyridine (CAS 186593-26-0)
- 2-Hydroxy-3-nitropyridine (CAS 6332-56-5)
- 6-Hydroxy-4-pyrimidinecarboxylic Acid (CAS 6299-87-2)
- 2-Hydroxy-4-nitropyridine 4-Nitro-2-pyridinol 4-Nitropyrid-2-one 4487-51-8 (CAS 4487-51-8)
- 4-Hydroxy-2-oxo-2H-pyran-6-carbaldehyde (CAS 147647-75-4)
- N’-hydroxy-2-(1H-pyrazol-1-yl)ethanimidamide (CAS 1158119-05-1)
Recommended Standards
- Coumalic Acid (CAS 500-05-0)
- 4-Nitrophenol 15N (CAS 103427-15-2)
- Cefuroxime Impurity 33 (CAS 1467-70-5)
- N-Formyl-1H-1,2,3-triazole-4-carboxamide (CAS 106913-63-7)
- 2-(Cyclopropyl((6-methoxypyridazin-3-yl)methyl)amino)acetic acid (CAS 1353984-85-6)
- 3-Amino-5-chloro-4-methylbenzenesulfonamide (CAS 1036609-43-4)
- 5-Bromo-1-chloro-2-methoxy-3-methylbenzene (CAS 91506-05-7)
- Ethyl 4-(4-benzyl-2-oxooxazolidin-3-yl)-4-oxobut-2-enoate (CAS 128217-49-2)
- [2-(2-methylpropyl)phenyl]methanamine (CAS 855278-36-3)
- 2-(Pyridin-4-yl)but-3-yn-2-ol (CAS 847547-27-7)
- 3-[(Tetrahydro-2-furanylmethoxy)methyl]piperidinehydrochloride (CAS 1185294-75-0)
- (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 2-cyanoacrylate (CAS 66470-69-7)
- Sarpogrelate Impurity 26 (CAS 914291-23-9)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com