3-Methyl-1-(6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)-1H-pyrazole-5-carboxylic acid CAS 1225286-88-3
| CAS No. | 1225286-88-3 |
| Molecular Formula | C9H9N5O3 |
| Molecular Weight | 235.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H9N5O3, 3-Methyl-1-(6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)-1H-pyrazole-5-carboxylic acid 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 235.20 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).
3-Methyl-1-(6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)-1H-pyrazole-5-carboxylic acid (CAS 1225286-88-3) is a high-purity analytical reference standard with the molecular formula C9H9N5O3 and a molecular weight of 235.20 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C9H9N5O3 |
| Molecular Weight | 235.20 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 5 |
Recommended Standards
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- (S)-1-(3,4-Dimethoxyphenyl)-2,2,2-trifluoroethan-1-amine (CAS 1213893-62-9)
- 3-Amino-3-(4-(trifluoromethoxy)phenyl)propan-1-ol (CAS 1250380-87-0)
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- 2-Cyclohexylpyrido[3,4-d]pyrimidin-4(3H)-one (CAS 1437433-79-8)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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