Methyl 5-nitro-1H-pyrazole-3-carboxylate hydrochloride CAS 650609-87-3
| CAS No. | 650609-87-3 |
| Molecular Formula | C5H5N3O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.57 g/mol gives Methyl 5-nitro-1H-pyrazole-3-carboxylate hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Methyl 5-nitro-1H-pyrazole-3-carboxylate hydrochloride (CAS 650609-87-3), a certified reference material (molecular formula C5H5N3O4HCl, MW 207.57 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H5N3O4HCl, Methyl 5-nitro-1H-pyrazole-3-carboxylate hydrochloride contains a carbohydrate-derived structure, an amide group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.57 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.
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.
CATO manufactures Methyl 5-nitro-1H-pyrazole-3-carboxylate hydrochloride 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 | C5H5N3O4 HCl |
| Molecular Weight | 207.57 g/mol |
| Appearance | Off-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 methanol, ethanol, DMSO, water |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
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- 6-Methyl-5-nitro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1000340-24-8)
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Recommended Standards
- 2-(2-Chloro-4-methylphenoxy)ethane-1-sulfonyl chloride (CAS 1491047-24-5)
- Ethyl 3-(5-methylpyrazin-2-yl)-3-oxopropanoate (CAS 62124-83-8)
- 3-(tert-Butoxy)-2-cyclopropoxy-N,N-dimethylaniline (CAS 1243375-20-3)
- 3-[(2-fluorophenyl)amino]propanenitrile (CAS 192811-51-1)
- (2-Bromo-3-chloro-6-(difluoromethyl)pyridin-4-yl)methanamine (CAS 1803690-34-7)
- 2-(Methylsulfonyl)-5-nitropyridine (CAS 79134-11-5)
- 5-Ethoxy-2-phenyloxazole-4-carbaldehyde (CAS 344560-39-0)
- tert-Butyl 5-formyl-1H-indole-1-carboxylate (CAS 279256-09-6)
- (S)-5-(Piperidin-3-yl)isoxazol-3(2H)-one (CAS 132033-59-1)
- FLAG Epitope Peptide (CAS 98849-88-8)
Why CATO?
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