Methyl 3-(4-methoxyphenyl)-1<I>H</I>-pyrazole-5-carboxylate CAS 192701-83-0
| CAS No. | 192701-83-0 |
| Molecular Formula | C12H22N2O3 |
| Molecular Weight | 242.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(4-methoxyphenyl)-1<I>H</I>-pyrazole-5-carboxylate (C12H22N2O3) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Methyl 3-(4-methoxyphenyl)-1<I>H</I>-pyrazole-5-carboxylate (CAS 192701-83-0), a certified reference material (molecular formula C12H22N2O3, MW 242.31 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.
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 | C12H22N2O3 |
| Molecular Weight | 242.31 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2012 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 1,2-Bis(4-methoxyphenyl)ethane (CAS 1657-55-2)
- 1,2-Bis(3-methoxyphenyl)ethane (CAS 36707-27-4)
- ethyl[(4-methoxyphenyl)(pyridin-3-yl)methyl]amine (CAS 1153032-83-7)
- [(4-methoxyphenyl)methyl][2-(pyridin-2-yl)ethyl]amine (CAS 22540-58-5)
- 1-(4-Methoxyphenyl)-N-(pyridin-2-ylmethyl)ethan-1-amine (CAS 626216-06-6)
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- 1-(4-Methoxyphenyl)-N-(pyridin-4-ylmethyl)ethan-1-amine (CAS 626216-12-4)
- 2-(4-Methoxyphenyl)-N-(pyridin-2-ylmethyl)ethan-1-amine (CAS 355382-90-0)
Recommended Standards
- 1-[ethyl(propan-2-yl)carbamoyl]piperidine-4-carboxylic acid (CAS 188854-52-6)
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- Tert-butyl (R)-4-acetyl-3-methylpiperazine-1-carboxylate (CAS 1884703-66-5)
- tert-Butyl (3R,3aR,7aR)-3-aminohexahydropyrano[3,2-b]pyrrole-1(2H)-carboxylate (CAS 1932351-96-6)
- 4-Methoxy-N-(2-(7-methylimidazo[1,2-a]pyridin-2-yl)ethyl)benzamide (CAS 868977-99-5)
- (2'-Amino-1,1'-biphenyl-2-yl)methanesulfonatopalladium(II) dimer (CAS 1435520-65-2)
- 9-Methyl-4-oxo-2-pyrrolidin-1-yl-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde (CAS 433318-45-7)
- (R)-1-Methylmephenytoin (CAS 201606-44-2)
- Chlorphenamine Impurity 61Maleic Acid (CAS 19428-44-5（free base）)
- 1-Chloro-2-methoxy-5-nitro-3-(propan-2-yloxy)benzene (CAS 1394984-34-9)
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- 4-Chloro-5,8-dihydro-6H-pyrano[3,4-d]pyrimidin-2-amine (CAS 2171032-51-0)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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