Ethyl 2-(4-methoxyphenyl)-4-phenyl-1H-pyrrole-3-carboxylate CAS 319905-70-9
| CAS No. | 319905-70-9 |
| Molecular Formula | C20H19NO3 |
| Molecular Weight | 321.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2-(4-methoxyphenyl)-4-phenyl-1H-pyrrole-3-carboxylate (CAS 319905-70-9), a certified reference material (molecular formula C20H19NO3, MW 321.37 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 2-(4-methoxyphenyl)-4-phenyl-1H-pyrrole-3-carboxylate (C20H19NO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C20H19NO3 |
| Molecular Weight | 321.37 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- {(4-Methoxyphenyl)[2-oxo-2-(piperidin-1-ylamino)-ethyl]amino}acetic acid (CAS 1142204-20-3)
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- Methyl 4-((3-(3-methoxyphenyl)ureido)methyl)piperidine-1-carboxylate (CAS 1234992-51-8)
- 1-Boc-4-(4-methoxyphenyl)pyrrolidine-3-carboxylic Acid (CAS 851484-94-1)
- 2-(4-Methoxyphenyl)-3,6,8-trimethylquinoline-4-carboxylic acid (CAS 932841-53-7)
- 2-(4-Methoxyphenyl)-6,8-dimethylquinoline-4-carbohydrazide (CAS 590360-18-2)
- 4-((4-Methoxyphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid (CAS 540763-75-5)
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Recommended Standards
- Diethyl 2-acetamido-2-(3-methylbenzyl)malonate (CAS 5440-54-0)
- Ethyl 3-[3-(benzyloxy)phenyl]-2-cyanobut-2-enoate (CAS 885266-49-9)
- Diethyl 2-(1-(1H-pyrrol-1-yl)cyclopentane-1-carbonyl)malonate (CAS 2231674-58-9)
- Ethyl 4-((2-ethoxyphenyl)carbamoyl)piperazine-1-carboxylate (CAS 925626-23-9)
- 3-((1H-Pyrazol-1-yl)methyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole (CAS 1174879-99-2)
- Hexadecanoic-13,13-d2 Acid (CAS 62690-28-2)
- 4-(Phenylselanyl)azetidin-2-one (CAS 89691-18-9)
- 4-Bromo-1,2,3-thiadiazole (CAS 500314-99-8)
- alpha-(Trifluoromethyl)naphthalene-1-methanol (CAS 17556-44-4)
- 4-Pyrimidin-2-ylbenzoyl chloride (CAS 679806-84-9)
- 1219948-55-6 1408AD 2-(4-Piperidinyl)ethyl 2-phenylacetate hydrochloride C15H22ClNO2 (CAS 1219948-55-6)
- 2-(2-(6-chlorohexyloxy)ethoxy)ethanamine (hydrochloride) (CAS 1035373-85-3)
- 4-(4-Ethoxy-3-methylphenyl)-4-hydroxybutanoic acid (CAS 879053-56-2)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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