1-(2-methoxyethyl)-5-methyl-1H-pyrazole-4-carboxylic acid CAS 1493829-57-4
| CAS No. | 1493829-57-4 |
| Molecular Formula | C8H12N2O3 |
| Molecular Weight | 184.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-methoxyethyl)-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 1493829-57-4), molecular formula C8H12N2O3 and molecular weight 184.19 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2-methoxyethyl)-5-methyl-1H-pyrazole-4-carboxylic acid (C8H12N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H12N2O3 |
| Molecular Weight | 184.19 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
Related methoxyethyl Standards
- methyl 1-(2-methoxyethyl)pyrazole-3-carboxylate (CAS 1172825-92-1)
- methyl 2-(2-methoxyethyl)pyrazole-3-carboxylate (CAS 1172860-88-6)
- 1-(2-Methoxyethyl)-5-methyl-1H-pyrazole-3-carboxylic acid (CAS 1175127-14-6)
- 1-(2-methoxyethyl)-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 1343805-24-2)
- 1-(2-Methoxyethyl)-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 864522-54-3)
- 1-(2-Methoxyethyl)octahydro-1H-pyrrolo[3,2-c]pyridine (CAS 1422067-22-8)
- 4-[(2-methoxyethyl)sulfanyl]aniline (CAS 1095599-55-5)
- [1-(2-methoxyethyl)-3,5-dimethyl-1h-pyrazol-4-yl]methanamine (CAS 1155595-80-4)
Recommended Standards
- Methyl 2-hydroxy-3-(1-methyl-1h-pyrazol-4-yl)propanoate (CAS 1490371-38-4)
- Methyl 2-(1-ethyl-1h-imidazol-5-yl)-2-hydroxyacetate (CAS 1495898-02-6)
- Methyl 2-(1-ethyl-1h-pyrazol-4-yl)-2-hydroxyacetate (CAS 1484465-88-4)
- 3-(1-Ethyl-1h-pyrazol-4-yl)-2-hydroxypropanoic acid (CAS 1498870-41-9)
- 4h,5h,6h,7h-Thieno[3,2-c]pyridine-5-sulfonamide (CAS 1094424-99-3)
- L-Galactose (CAS 15572-79-9)
- Methyl 1-((4-chlorophenyl)amino)cyclopropane-1-carboxylate (CAS 1697351-29-3)
- 4-(Methylthio)pyridine (CAS 22581-72-2)
- Methyl 5-Bromoindole-3-acetate (CAS 117235-22-0)
- 4-(2-Aminoethoxy)-N,N-dimethylcyclohexanamine (CAS 1353966-35-4)
- (S)-Ethyl 4-amino-2-(((benzyloxy)carbonyl)amino)-4-oxobutanoate (CAS 4668-38-6)
- Ethyl 2-(2-((1H-indol-3-yl)methyl)-1H-indol-3-yl)-2-oxoacetate (CAS 229020-85-3)
- 1,3,5-Tribromo-2-methoxy-4-methylbenzene (CAS 41424-36-6)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
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