3-(4-Methoxyphenyl)-4-methyl-1H-pyrazole-5-carboxylic acid CAS 1234342-93-8
| CAS No. | 1234342-93-8 |
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(4-Methoxyphenyl)-4-methyl-1H-pyrazole-5-carboxylic acid (CAS 1234342-93-8), molecular formula C12H12N2O3 and molecular weight 232.24 g/mol, is a CATO reference standard with documented purity and traceability.
3-(4-Methoxyphenyl)-4-methyl-1H-pyrazole-5-carboxylic acid (C12H12N2O3) 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 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).
CATO manufactures 3-(4-Methoxyphenyl)-4-methyl-1H-pyrazole-5-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.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Methoxyphenyl Standards
- 3-(2-Methoxyphenyl)-1-methyl-1h-pyrazole-5-carboxylic acid (CAS 1015868-53-7)
- 5-(2-Methoxyphenyl)-1-methyl-1h-pyrazole-4-carboxylic acid (CAS 1020722-82-0)
- 1-(4-Methoxyphenyl)-5-methyl-1h-pyrazole-3-carboxylic acid (CAS 1020724-35-9)
- 3-(3-Methoxyphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1022575-47-8)
- 2-(3-Methoxyphenyl)-5-methyl-1h-imidazole-4-carboxylic acid (CAS 1048920-48-4)
- 3-(2-methoxyphenyl)-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 1152511-14-2)
- 1-(3-Methoxyphenyl)-5-methyl-1h-pyrazole-3-carboxylic acid (CAS 1175929-14-2)
- 1-(2-Methoxyphenyl)-5-methyl-1H-pyrazole-3-carboxylic acid (CAS 1225539-41-2)
Recommended Standards
- ethyl 2-{2-methylimidazo[1,2-a]pyridin-3-yl}-2-oxoacetate (CAS 1233927-29-1)
- 1-(4-Methoxybenzyl)-4-nitroso-1H-pyrazol-5-amine (CAS 1236202-77-9)
- 2-((2-Hydrazinylquinolin-8-yl)oxy)acetamide (CAS 1225871-07-7)
- 5-(2-Hydroxyethyl)-6-methyl-2-(pyrazin-2-yl)pyrimidin-4-ol (CAS 1239736-46-9)
- 6-(3,6-dihydro-2H-pyran-4-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile (CAS CATO-C3D-262143)
- 1-(3-Bromo-4-(trifluoromethyl)phenyl)-4,4-difluoropiperidine 1707367-56-3 (CAS 1707367-56-3)
- 2,3-Bis(2-methoxyphenyl)-N-phenyl-1,2,4-thiadiazol-5(2H)-imine (CAS 524923-88-4)
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- Thiazol-2-amine hydrochloride (CAS 6142-05-8)
- 2-[(adamantan-1-yl)formamido]-3-(1h-indol-3-yl)propanoic acid (CAS 1396988-55-8)
- 1-Fluoro-4-(5,5,5-trifluoropentyl)benzene (CAS 1099598-03-4)
- 2-Aminothieno[2,3-d]pyrimidin-4(1H)-one (CAS 1010068-13-9)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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