4-formyl-1-methyl-1H-pyrazole-3-carboxylic acid CAS 1267443-23-1
| CAS No. | 1267443-23-1 |
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-formyl-1-methyl-1H-pyrazole-3-carboxylic acid 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.
CATO supplies 4-formyl-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 1267443-23-1), a certified reference material (molecular formula C6H6N2O3, MW 154.12 g/mol) for analytical method development and quality control.
The molecular framework of 4-formyl-1-methyl-1H-pyrazole-3-carboxylic acid (C6H6N2O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 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.) | 1990 |
| Nitrogen Atoms | 2 |
Related formyl Standards
- 5-formyl-3-methylfuran-2-carboxylic acid (CAS 1007388-69-3)
- 5-Formyl-2-methylfuran-3-carboxylic acid (CAS 1125-59-3)
- Methyl 3-formyl-1H-pyrazole-4-carboxylate (CAS 124598-38-5)
- 2-(4-Formyl-1H-pyrazol-1-yl)acetic acid (CAS 1273318-62-9)
- 2-(4-Formyl-1H-imidazol-1-yl)acetic acid (CAS 1303968-40-2)
- 2-(2-Formyl-1H-imidazol-1-yl)acetic acid (CAS 1321594-28-8)
- 5-Formyl-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 1368337-66-9)
- 5-formyl-4-methylfuran-2-carboxylic acid (CAS 1506054-67-6)
Recommended Standards
- 5-Methoxy-2-nitropyridine (CAS 126739-64-8)
- 2-Amino-3,5-difluorobenzonitrile (CAS 126674-94-0)
- 3-Methoxy-5-nitropyridine (CAS 128203-37-2)
- n-(3,4-Difluorophenyl)cyanamide (CAS 1251343-38-0)
- 2-((1H-Benzo[d]imidazol-2-yl)thio)-N-phenylacetamide hydrochloride (CAS 1177732-31-8)
- 6-(2-Chloroacetyl)-2H-1,4-benzoxazin-3(4H)-one (CAS 26518-76-3)
- ethyl 2-ethyl-2-sulfanylbutanoate (CAS 67431-23-6)
- 2-Phenyl-1-(thiophen-2-yl)ethan-1-amine hydrochloride (CAS 102339-13-9)
- ((5-Methylbenzo[c][1,2,5]thiadiazol-4-yl)sulfonyl)proline (CAS 436811-15-3)
- Tamsulosin Impurity 21 (CAS 1396967-49-9)
- Isoorientin (CAS 4261-42-1)
- (E)-{2-[4-(diphenylmethyl)piperazin-1-yl]-1-(4-fluorophenyl)ethylidene}(methoxy)amine 551921-46-1 6N-502S (CAS 551921-46-1)
- 1-(1,2,3,5,6,8A-hexahydroindolizin-8-yl)butan-1-one (CAS 73971-21-8)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com