5-Nitro-6-oxo-1,6-dihydropyridine-3-carbonitrile CAS 320405-84-3
| CAS No. | 320405-84-3 |
| Molecular Formula | C6H3N3O3 |
| Molecular Weight | 165.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Nitro-6-oxo-1,6-dihydropyridine-3-carbonitrile is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Nitro-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 320405-84-3) is a high-purity analytical reference standard with the molecular formula C6H3N3O3 and a molecular weight of 165.11 g/mol.
Structurally, 5-Nitro-6-oxo-1,6-dihydropyridine-3-carbonitrile (C6H3N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 165.11 g/mol, it falls into the medium-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).
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 | C6H3N3O3 |
| Molecular Weight | 165.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Nitro Standards
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Recommended Standards
- 2-azido-5-nitropyridine (CAS 69080-06-4)
- 6-Hydroxy-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione (CAS 21715-98-0)
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- 1,2-Dihydro-5-nitro-2-oxo-3-pyridinecarbonitrile (CAS 31309-38-3)
- 6-Amino-5-propyl-2-thioxo-2,3-dihydropyrimidine-4-carboxylic acid (CAS 13164-79-9)
- 3-tert-butylcyclobutanone (CAS 20614-90-8)
- 1-Methoxy-4-((4-(4-pentylcyclohexyl)phenyl)ethynyl)benzene (CAS 372983-17-0)
- 7-Acetamido-6-(benzyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl acetate (CAS 13343-64-1)
- 2-Bromo-5-fluoro-1-nitro-3-(trifluoromethyl)benzene (CAS 917391-24-3)
- N-(6-Acetyl-1,3-benzodioxol-5-yl)-2-chloroacetamide (CAS 85590-94-9)
- 2-((5-Phenylthieno[2,3-d]pyrimidin-4-yl)thio)benzoic acid (CAS 744203-98-3)
- 8-(3-Chloro-2-hydroxypropoxy)-2,3-dimethylquinazolin-4(3H)-one (CAS 105494-03-9)
- 5-((3,4-Dimethylphenyl)amino)-6-hydroxypyrimidin-4(3H)-one (CAS 6972-23-2)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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