Ethyl 3-(5-formyl-2,4-dimethyl-1H-pyrrol-3-yl)propanoate CAS 21603-70-3
| CAS No. | 21603-70-3 |
| Molecular Formula | C12H17NO3 |
| Molecular Weight | 223.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 3-(5-formyl-2,4-dimethyl-1H-pyrrol-3-yl)propanoate (CAS 21603-70-3), a certified reference material (molecular formula C12H17NO3, MW 223.27 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 3-(5-formyl-2,4-dimethyl-1H-pyrrol-3-yl)propanoate (C12H17NO3) is characterized by an amino-acid-derived structure, 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 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).
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.
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 | C12H17NO3 |
| Molecular Weight | 223.27 g/mol |
| Appearance | Off-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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Methyl 2-(2-formyl-1H-pyrrol-1-yl)-3,3-dimethylbutanoate (CAS 343373-28-4)
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Recommended Standards
- Ethyl 3-((4-methoxyphenyl)amino)propanoate (CAS 63767-58-8)
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- Ethyl 3-amino-3-(3-methoxyphenyl)propanoate (CAS 21464-54-0)
- 4-(Aminomethyl)-3-chloropyridin-2-amine (CAS 1393560-31-0)
- M-ALPHA hydrochloride (CAS 1134709-81-1)
- 2,2,3,3-Tetrafluoro-2,3-dihydrobenzo[b][1,4]dioxine-6-carbaldehyde (CAS 159276-63-8)
- Bis(2-ethylhexyl) sulfate (CAS 65717-77-3)
- 1-Cyclohexyl-3-(1-isobutyryl-1,2,3,4-tetrahydroquinolin-7-yl)urea (CAS 1203309-80-1)
- 4-Chloro-2-hydroxy-6-methylphenylboronic acid (CAS 1207961-50-9)
- Ethyl 5,7-difluoro-1H-indole-2-carboxylate (CAS 220679-10-7)
- 2'-Amino-5'-isopropyl-[1,1':3',1"-terphenyl]-3,3",5,5"-tetracarboxylic acid (CAS 2409046-82-6)
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- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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