3-[(E)-2-[(3-Chlorophenyl)amino]-1-nitroethenyl]-1,3-dihydro-2-benzofuran-1-one CAS 320420-37-9
| CAS No. | 320420-37-9 |
| Molecular Formula | C16H11ClN2O4 |
| Molecular Weight | 330.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H11ClN2O4, 3-[(E)-2-[(3-Chlorophenyl)amino]-1-nitroethenyl]-1,3-dihydro-2-benzofuran-1-one contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 3-[(E)-2-[(3-Chlorophenyl)amino]-1-nitroethenyl]-1,3-dihydro-2-benzofuran-1-one (CAS 320420-37-9), a certified reference material (molecular formula C16H11ClN2O4, MW 330.72 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 3-[(E)-2-[(3-Chlorophenyl)amino]-1-nitroethenyl]-1,3-dihydro-2-benzofuran-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H11ClN2O4 |
| Molecular Weight | 330.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
- 5-[(E)-2-[5-(2-Chlorophenyl)furan-2-yl]ethenyl]-3-methyl-4-nitro-1,2-oxazole (CAS 1164513-00-1)
- 2-((3-(4-Chlorophenyl)-2-oxo-2h-chromen-7-yl)oxy)acetic acid (CAS 141113-52-2)
- N-(4-chlorophenyl)-2-((1,3-dioxoisoindolin-2-yl)oxy)acetamide (CAS 153078-95-6)
- (E)-5-(2-(5-(3-chlorophenyl)furan-2-yl)vinyl)-3-methyl-4-nitroisoxazole (CAS 338785-43-6)
- (E)-5-(2-(5-(4-chlorophenyl)furan-2-yl)vinyl)-3-methyl-4-nitroisoxazole (CAS 338785-39-0)
- 6-((4-Chlorophenyl)thio)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 339017-49-1)
- 1-(3-Chlorophenyl)-4-(3-fluorobenzyl)-1,4-dihydropyrazine-2,3-dione (CAS 904524-22-7)
- 1-(4-chlorophenyl)-N-(4-fluorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 321431-19-0)
Recommended Standards
- 2-Chloro-N -(2-fluorophenyl)-5-nitrobenzene-1-sulfonamide (CAS 379255-88-6)
- 3-[2-(4-Chloroanilino)-1-nitrovinyl]-2-benzofuran-1(3H)-one (CAS 338753-94-9)
- 2-Amino-4-(2-chlorophenyl)-6-(hydroxymethyl)-8-oxo-4H,8H-pyrano[3,2-b]pyran-3-carbonitrile (CAS 665000-76-0)
- 3-Chloro-6-((3-(trifluoromethyl)phenyl)thio)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 303996-20-5)
- 2-BOC-Amino-3-methoxy-propionic acid methyl ester (CAS 1800300-80-4)
- (5-Bromo-3-methylbenzofuran-2-yl)(4-chlorophenyl)methanone (CAS 117238-81-0)
- (3-(Di(pyridin-2-yl)methylene)cyclopenta-1,4-dien-1-yl)di(pyridin-2-yl)methanol (CAS 1740-22-3)
- 2-chloro-N-cyclopropyl-N-(thiophen-3-ylmethyl)acetamide (CAS 1197909-94-6)
- 3,4-Dihydro-5,8-dimethoxyisoquinoline Hydrochloride (CAS 29983-76-4)
- 4-(N-Boc-Amino)-5-(methoxycarbonyl)thiophene-2-boronic acid (CAS 2377608-25-6)
- 5-Bromomethyl-3-(2-nitrophenyl)-isoxazole (CAS 1231243-92-7)
- 3-(Difluoromethyl)-1-methyl-1H-pyrazol-5(4H)-one (CAS 1048018-91-2)
- 2-Chloro-5-methanesulfonylthiophene-3-sulfonyl chloride (CAS 887350-82-5)
- D-Ala28-Tirzepatide (CAS CATO-CPTD788906)
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