Ethyl 2-{2,4-dichloro-5-[3-(2-nitrophenoxy)thiophene-2-amido]phenoxy}acetate CAS 339015-23-5
| CAS No. | 339015-23-5 |
| Molecular Formula | C21H16Cl2N2O7S |
| Molecular Weight | 511.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2-{2,4-dichloro-5-[3-(2-nitrophenoxy)thiophene-2-amido]phenoxy}acetate (CAS 339015-23-5), a certified reference material (molecular formula C21H16Cl2N2O7S, MW 511.33 g/mol) for analytical method development and quality control.
Ethyl 2-{2,4-dichloro-5-[3-(2-nitrophenoxy)thiophene-2-amido]phenoxy}acetate (C21H16Cl2N2O7S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Ethyl 2-{2,4-dichloro-5-[3-(2-nitrophenoxy)thiophene-2-amido]phenoxy}acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H16Cl2N2O7S |
| Molecular Weight | 511.33 g/mol |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 2-{2,4-dichloro-5-[3-(4-nitrophenoxy)thiophene-2-amido]phenoxy}acetate (CAS 339015-28-0)
- N-(2,4-dichloro-5-isopropoxyphenyl)-2-((2-oxo-2-((3-(trifluoromethyl)phenyl)amino)ethyl)sulfinyl)acetamide (CAS 341964-76-9)
- (+)-N-((2,5-Dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl)carbamoyl)-2,6-difluorobenzamide (CAS 130841-22-4)
- (-)-N-((2,5-Dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl)carbamoyl)-2,6-difluorobenzamide (CAS 130841-26-8)
- Dichloro[1,3-dihydro-1-[(3-methoxyphenyl)methyl]-3-methyl-2H-benzimidazol-2-ylidene](pyridine)palladium (CAS 2304464-50-2)
- N-[2-[[6-(2,6-Dichloro-3,5-dimethoxyphenyl)-2-quinazolinyl]amino]-3-methylphenyl]acrylamide (CAS 1538604-68-0)
- 6,8-Dichloro-3-(2,6-dimethylphenyl)-2-(((3-(trifluoromethyl)phenyl)thio)methyl)quinazolin-4(3H)-one (CAS 338957-48-5)
- N-((2,5-Dichloro-4-((1,1,2,2-tetrafluoroethyl)sulfonyl)phenyl)carbamoyl)-2,6-difluorobenzamide (CAS 100341-28-4)
Recommended Standards
- 6-Fluoro-2-((4-iodobenzo[d][1,3]dioxol-5-yl)methyl)-1-(3-(isopropylamino)propyl)-1H-imidazo[4,5-c]pyridin-4-amine (CAS 1799421-10-5)
- Etoposide Impurity 27 (CAS 101648-62-8)
- N-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]-7-iodo-heptanamide (CAS 2703834-54-0)
- (R)-Benzyl 2-((tert-butoxycarbonyl)amino)-3-(3-iodo-4-methoxyphenyl)propanoate (CAS 1263377-25-8)
- N-(2-chloro-4-fluorophenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040662-21-2)
- 4-(Octyloxy)-N,N-diphenylaniline (CAS 374630-28-1)
- N-(cyclopropylmethyl)-1,3,4-thiadiazol-2-amine (CAS 1342764-93-5)
- Pazopanib Impurity 10 (CAS CATO-C4X-172510)
- (E)-1-(dimethylamino)-4-(m-tolyloxy)pent-1-en-3-one (CAS 306979-55-5)
- 1-(3-Fluorophenyl)hexan-1-one (CAS 1041467-42-8)
- Ethyl 4-Amino-3-chlorobenzoate (CAS 82765-44-4)
- (R)-4-(tert-pentyl)-2-(pyrrolidin-2-yl)phenol (CAS 1213956-70-7)
- Cefixime Impurity 91 (CAS CATO-C4X-113991)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
Why CATO?
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