Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate CAS 477712-89-3
| CAS No. | 477712-89-3 |
| Molecular Formula | C20H21N5O3 |
| Molecular Weight | 379.41 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.
Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate (CAS 477712-89-3), molecular formula C20H21N5O3 and molecular weight 379.41 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H21N5O3, Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 379.41 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).
As a certified reference material (CRM), Ethyl 3,5-dimethyl-1-(5-(3-phenylureido)pyridin-2-yl)-1H-pyrazole-4-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C20H21N5O3 |
| Molecular Weight | 379.41 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
Related Ethyl Standards
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Recommended Standards
- Benzyl 6'-amino-5'-cyano-3'-methyl-2'H-spiro[piperidine-4,4'-pyrano[2,3-c]pyrazole]-1-carboxylate (CAS 371923-81-8)
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- Ala-Ala-Asn-PAB (CAS 2149584-00-7)
- N-(2-Fluorophenyl)-2-(2-oxo-5-(pyrrolidin-1-ylsulfonyl)pyridin-1(2H)-yl)acetamide (CAS 923735-18-6)
- 3-Ethyl-1-methyl-5-propoxy-1h-pyrazol-4-amine (CAS 1479352-48-1)
- 1-Cyclopentylpiperazin-2-one hydrochloride (CAS 1185300-00-8)
- (2-Chlorophenyl)diphenylphosphane (CAS 35035-62-2)
- Dapagliflozin Impurity 202 (CAS CATO-C4X-1138202)
- 16-methyl-heptadecanoicaci (CAS 2724-58-5)
- Aerophobin-2 (CAS 87075-23-8)
- 2-(1-(4-Nitrophenyl)-1H-pyrazol-5-yl)pyrimidine (CAS 1269292-68-3)
- Ethyl 6-(ethylamino)nicotinate (CAS 858430-72-5)
- 11 beta-Hydroxy-17,20:20,21-bis(methylenedioxy)pregn-4-en-3-one (CAS 1419705-13-7)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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