5-Nitro-2-(pyridin-2-yl)-2H-1,2,3-triazole-4-carboxylic acid CAS 1774903-48-8
| CAS No. | 1774903-48-8 |
| Molecular Formula | C8H5N5O4 |
| Molecular Weight | 235.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Nitro-2-(pyridin-2-yl)-2H-1,2,3-triazole-4-carboxylic acid (C8H5N5O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 235.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-Nitro-2-(pyridin-2-yl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1774903-48-8), a certified reference material (molecular formula C8H5N5O4, MW 235.16 g/mol) for analytical method development and quality control.
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 | C8H5N5O4 |
| Molecular Weight | 235.16 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 5 |
Related Nitro Standards
- 1-Methyl-1-(2-nitro-4-(trifluoromethyl)phenyl)hydrazine (CAS 120940-43-4)
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- 2-(4-Nitro-6-(trifluoromethyl)pyridin-2-yl)ethan-1-amine (CAS 1393575-78-4)
- 2-Methyl-1-nitro-4-(2,2,2-trifluoroethoxy)benzene (CAS 157060-87-2)
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Recommended Standards
- 3-(2-Oxo-5-(trifluoromethyl)pyridin-1(2H)-yl)propanoic acid (CAS 175277-72-2)
- Indoxacarb Impurity 3 (CAS 177905-10-1)
- Ethyl 4-hydroxy-2-(trifluoromethyl)nicotinate (CAS 172985-72-7)
- 4-(Trifluoromethyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-6-carboxylic acid (CAS 1784701-58-1)
- 4-Fluoro-2-methyl-1-(sulfinylamino)benzene (CAS 1785764-38-6)
- 1-(4-Cyclopropylphenyl)ethan-1-amine hydrochloride (CAS 1432678-65-3)
- 2,2-Dimethyl-1-(2-(trifluoromethyl)phenyl)propan-1-one (CAS 898766-36-4)
- 3-Methyl-1-(1h-1,2,4-triazol-3-yl)butan-1-amine (CAS 1251276-97-7)
- 2-chloro-N-(pentan-2-yl)propanamide (CAS 1016808-29-9)
- 1-(Cyanomethyl)-2-oxopiperidine-4-carboxylic Acid (CAS 2006278-29-9)
- 1-Bromo-2-[chloro(difluoro)methoxy]-5-fluoro-4-nitro-benzene (CAS 1417566-56-3)
- 2-{[5-(4-chlorobenzoyl)thiophen-2-yl]methyl}-4-(3,4-dichlorophenyl)-1,3-thiazole (CAS 400075-84-5)
- 4-Amino-1-ethyl-6-methylpyridin-2(1H)-one (CAS 1082160-12-0)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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