4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(3,4-dichlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile CAS 866142-85-0
| CAS No. | 866142-85-0 |
| Molecular Formula | C28H14Cl2N2O3 |
| Molecular Weight | 497.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(3,4-dichlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 866142-85-0), molecular formula C28H14Cl2N2O3 and molecular weight 497.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C28H14Cl2N2O3, 4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(3,4-dichlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile contains a steroid 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 497.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(3,4-dichlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile 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 | C28H14Cl2N2O3 |
| Molecular Weight | 497.33 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related H Standards
- 162256-50-0 3-(1,3-Benzodioxol-5-yl)-5-hydroxy-5-(4-methoxyphenyl)-4-[(3,4,5-trimethoxyphenyl)methyl]-2(5H)-furanone CI 1020 PD 156707 (CAS 162256-50-0)
- 2-{[6-(2H-1,3-benzodioxol-5-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}-N-(1-phenylethyl)acetamide (CAS 625378-05-4)
- (4S)-1-(1,3-Benzodioxol-5-ylmethyl)-4-[(3,3-dimethyl-1-oxobutyl)[(3-methoxyphenyl)methyl]amino]-L-proline (CAS 334999-53-0)
- 2-{[6-(2H-1,3-benzodioxol-5-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}-N-(2-fluorophenyl)acetamide (CAS 625378-07-6)
- 2-[(2H-1,3-Benzodioxol-5-yl)methylidene]-N,N'-bis[4-(trifluoromethyl)phenyl]propanediamide (CAS 866008-52-8)
- 4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(2-chlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 866136-02-9)
- 4-(2H-1,3-Benzodioxol-5-yl)-2-[(E)-2-(3-chlorophenyl)ethenyl]-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 866142-82-7)
- 2-{[6-(2H-1,3-benzodioxol-5-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}-N-(4-methyl-1,3-oxazol-2-yl)acetamide (CAS 625378-08-7)
Recommended Standards
- 2-((4-Allyl-5-(2-bromophenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 332910-81-3)
- 4-[4-(4-Methoxyphenyl)pyrimidin-2-yl]phenyl 4-bromobenzene-1-sulfonate (CAS 477857-14-0)
- 2-((4-Allyl-5-(2-bromophenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-(trifluoromethyl)phenyl)acetamide (CAS 332910-82-4)
- 7-Bromo-6-fluoro-N5,N5-bis(4-methoxybenzyl)quinazoline-2,5-diamine (CAS 2770250-86-5)
- methyl 2-(4-cyano-2-hydroxyphenyl)acetate (CAS 1261649-42-6)
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- 3,5-Difluoro-2-nitrobenzaldehyde (CAS 213382-46-8)
- 2-Fluoro-5-methyl-4-(trifluoromethyl)benzenesulfonyl chloride (CAS 1706431-05-1)
- 7-Bromo-indolizine (CAS 1539657-44-7)
- 5-Cyclopropoxy-2-isopropoxynicotinaldehyde (CAS 1243353-83-4)
- (R)-5-Isobutyl-3-phenyl-2-thioxoimidazolidin-4-one (CAS 92419-07-3)
- Y7 / BTP-4Cl (CAS 2447642-40-0)
- (S)-3-(4-Aacetamidophenyl)-2-aminopropanoic acid (CAS 24250-87-1)
- Peptide YY (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 81858-94-8)
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