3-Nitro-2-(1H-pyrazol-1-yl)pyridine CAS 76211-91-1
| CAS No. | 76211-91-1 |
| Molecular Formula | C8H6N4O2 |
| Molecular Weight | 190.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Nitro-2-(1H-pyrazol-1-yl)pyridine 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.
3-Nitro-2-(1H-pyrazol-1-yl)pyridine (CAS 76211-91-1), molecular formula C8H6N4O2 and molecular weight 190.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Nitro-2-(1H-pyrazol-1-yl)pyridine (C8H6N4O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 3-Nitro-2-(1H-pyrazol-1-yl)pyridine 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 | C8H6N4O2 |
| Molecular Weight | 190.16 g/mol |
| Appearance | Pale yellow to 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
Related Nitro Standards
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- 4-(4-Nitro-1H-imidazol-2-yl)pyridine (CAS 63411-71-2)
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Recommended Standards
- 3-Formylindazole-6-carboxylic Acid (CAS 319474-35-6)
- 3-Formylindazole-4-carboxylic Acid (CAS 885519-78-8)
- 3-Nitrocinnolin-4-amine (CAS 343773-71-7)
- 3-Formyl-1H-indazole-5-carboxylic acid (CAS 885519-98-2)
- 2-(3-Phenylpropoxy)ethane-1-sulfonyl chloride (CAS 1411520-46-1)
- 3-(1,2,2,2-Tetrafluoroethyl)azetidine hydrochloride (CAS 2231677-19-1)
- 5,6-Dimethoxybenzofuran-2-carboxylic Acid (CAS 114842-08-9)
- 691363-81-2 1-Cyclopropyl-2-(1,3-dioxolan-2-yl)-ethanone MFCD18433509 (CAS 691363-81-2)
- 2-(5-Phenyl-1h-1,2,3,4-tetrazol-1-yl)-3-(thiophen-2-yl)prop-2-enoic acid (CAS 525588-94-7)
- (1-{4-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2-nitroethenyl)(methyl)amine (CAS 1823194-64-4)
- 2-Bromo-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1309982-23-7)
- 3-Bromo-1-methyl-5-(trifluoromethyl)pyridin-2(1H)-one (CAS 1215205-35-8)
- (3-(Morpholinosulfonyl)thiophen-2-yl)methanol (CAS 1030431-13-0)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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