Ethyl 4-(2-(4-((4-chloro-1-(3-chloro-4-methylphenyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl)amino)phenyl)acetamido)benzoate CAS 6857-78-9
| CAS No. | 6857-78-9 |
| Molecular Formula | C28H23Cl2N3O5 |
| Molecular Weight | 552.41 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 Ethyl 4-(2-(4-((4-chloro-1-(3-chloro-4-methylphenyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl)amino)phenyl)acetamido)benzoate.
CATO supplies Ethyl 4-(2-(4-((4-chloro-1-(3-chloro-4-methylphenyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl)amino)phenyl)acetamido)benzoate (CAS 6857-78-9), a certified reference material (molecular formula C28H23Cl2N3O5, MW 552.41 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 4-(2-(4-((4-chloro-1-(3-chloro-4-methylphenyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl)amino)phenyl)acetamido)benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 552.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C28H23Cl2N3O5 |
| Molecular Weight | 552.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
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Recommended Standards
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- (6S)-Hexahydro-1,4-oxazepin-6-ol (hydrochloride) (CAS 2708343-61-5)
- 2,5-Dimethyl-3-phenylbenzofuran (CAS 69740-66-5)
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- Sodium 2-(4-(cyclopropanecarbonyl)phenyl)acetate (CAS 42011-88-1)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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