Diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate CAS 58029-72-4
| CAS No. | 58029-72-4 |
| Molecular Formula | C19H22BrNO4 |
| Molecular Weight | 408.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate.
Diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 58029-72-4), molecular formula C19H22BrNO4 and molecular weight 408.29 g/mol, is a CATO reference standard with documented purity and traceability.
Diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (C19H22BrNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C19H22BrNO4 |
| Molecular Weight | 408.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 1-[3-(4-Bromophenyl)-[1,2,4]triazolo[4,3-c]quinazolin-5-yl]piperidine (CAS 339026-05-0)
- N-(2,6-Dichloropyridin-4-yl)-2-(4-isopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)hydrazine-1-carboxamide (CAS 383150-41-2)
- (9H-Fluoren-9-yl)methyl (4-bromo-2-methylphenyl)carbamate (CAS 2164249-64-1)
- N-(4-Bromo-3-methylphenyl)-3-(3-phenoxyphenyl)acrylamide (CAS 478258-27-4)
- Zinc(II) pivalate (CAS 15827-10-8)
- Azetidin-1-yl-(3,5-difluoropyridin-2-yl)methanone (CAS 955885-63-9)
- YM-26734 (CAS 144337-18-8)
- 4-(2-Methoxypropyl)piperidine hydrochloride (CAS 1242339-01-0)
- 4-Methyl-4-(p-tolyl)pentan-2-one (CAS 10528-65-1)
- 1-Methyl-2,3-dihydro-1h-inden-1-amine (CAS 927406-03-9)
- 2-Fluoro-4,5-dimethoxybenzoic acid (CAS 79474-35-4)
- Ethyl 4-hydroxy-3-nitropicolinate (CAS 1806339-13-8)
- Formoterol EP Impurity H (Enantiomer Mixture) (CAS CATO-C4X-15258)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
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