4-(Methoxycarbonyl)-5-methyl-1h-pyrazole-3-carboxylic acid CAS 198135-11-4
| CAS No. | 198135-11-4 |
| Molecular Formula | C7H8N2O4 |
| Molecular Weight | 184.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(Methoxycarbonyl)-5-methyl-1h-pyrazole-3-carboxylic acid 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.
4-(Methoxycarbonyl)-5-methyl-1h-pyrazole-3-carboxylic acid (CAS 198135-11-4), molecular formula C7H8N2O4 and molecular weight 184.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H8N2O4, 4-(Methoxycarbonyl)-5-methyl-1h-pyrazole-3-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 184.15 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H8N2O4 |
| Molecular Weight | 184.15 g/mol |
| Appearance | Off-white to pale 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 2 |
Related Methoxycarbonyl Standards
- 2-[4-(methoxycarbonyl)-1h-pyrazol-1-yl]acetic acid (CAS 1006348-69-1)
- 4-(Methoxycarbonyl)-5-methyl-3-furoic acid (CAS 111301-76-9)
- 4-(Methoxycarbonyl)-1-methyl-1h-pyrazole-5-carboxylic acid (CAS 1131912-84-9)
- [3-(methoxycarbonyl)-1H-pyrazol-1-yl]acetic acid (CAS 1170089-42-5)
- 3-(Methoxycarbonyl)-1-methyl-1h-pyrazole-4-carboxylic acid (CAS 1170923-24-6)
- 5-(Methoxycarbonyl)-1-methyl-1h-pyrazole-4-carboxylic acid (CAS 1172798-36-5)
- 2-[5-(methoxycarbonyl)-1h-pyrazol-1-yl]acetic acid (CAS 1245808-23-4)
- 5-(Methoxycarbonyl)-2-methylfuran-3-carboxylic acid (CAS 1359657-46-7)
Recommended Standards
- 4-(Methoxycarbonyl)-1-methyl-1H-imidazole-2-carboxylic acid (CAS 2678598-25-7)
- 4,5-Dimethyl-1H-pyrazole-1,3-dicarboxylic acid (CAS 856343-99-2)
- 4-(Ethoxycarbonyl)furan-3-carboxylic acid (CAS 34501-80-9)
- 4,6-Dimethoxy-5-nitrosopyrimidin-2-amine (CAS 326855-11-2)
- Methyl 5-chloro-1,2,4-thiadiazole-3-carboxylate (CAS 75028-30-7)
- 4-Amino-5-(2-fluoro-benzyl)-4H-[1,2,4]triazole-3-thiol (CAS 554436-95-2)
- 5-Iodo-6-isopropyl-2-methylpyrimidin-4(3H)-one (CAS 1482437-28-4)
- Difluoro[[2-[[1-oxo-3-[5-[[5-(4-phenyl-1,3-butadien-1-yl)-2H-pyrrol-2-ylidene-κN]methyl]-1H-pyrrol-2-yl-κN]propyl]amino]ethyl]triphenylphosphoniumato]-Boron bromide (CAS 1392820-50-6)
- 6-Ethyl-5-methyl-2-pyridinamine (CAS 142908-15-4)
- 1-(7-Fluoro-2-(pyridin-2-yl)quinolin-3-yl)ethan-1-one (CAS 1639971-09-7)
- N-[1-(1H-1,3-Benzodiazol-2-yl)-2-methylpropyl]-2-chlorobenzamide (CAS 338423-15-7)
- 3-(1-(4-Chlorobenzyl)-5,6-dimethyl-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 860784-70-9)
- 2-Fluoro-N-(thiophen-3-ylmethyl)aniline (CAS 1019604-91-1)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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