5-Methyl-1H-pyrazole-3-carboxylic acid hydrochloride CAS 2306262-03-1
| CAS No. | 2306262-03-1 |
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H6N2O2HCl, 5-Methyl-1H-pyrazole-3-carboxylic acid hydrochloride contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 162.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 5-Methyl-1H-pyrazole-3-carboxylic acid hydrochloride (CAS 2306262-03-1), a certified reference material (molecular formula C5H6N2O2HCl, MW 162.57 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.
As a certified reference material (CRM), 5-Methyl-1H-pyrazole-3-carboxylic acid hydrochloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O2 HCl |
| Molecular Weight | 162.57 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 2,2,2-Trifluoroethyl n-(2-ethyl-6-methylphenyl)carbamate (CAS 1087788-62-2)
- 1-(2,5-Dichlorophenyl)-5-(5,5-dimethyl-1,3-dioxan-2-yl)pentan-1-one (CAS 898756-95-1)
- (3-((4-(2-Hydroxyethyl)piperazin-1-yl)sulfonyl)-4-methylphenyl)boronic acid (CAS 1704095-68-0)
- 4-Chloro-1H-Pyrrolo[2,3-b]pyridine-6-carbonitrile (CAS 935466-70-9)
- [2,4'-bipyrimidine]-4-carboxylic acid (CAS 1342411-00-0)
- 1-Phenyl-2-(piperidin-1-yl)ethan-1-ol (CAS 2480-56-0)
- 3-(3,4-Dichlorophenoxy)propanenitrile (CAS 1182962-05-5)
- 4-Methyltetrahydropyran-4-ol (CAS 7525-64-6)
- 2,7-Dimethoxybenzothiazole (CAS 1261563-96-5)
- D-Leu14-Tirzepatide (CAS CATO-CPTD788920)
Why CATO?
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