2-[(E)-(3,4-Dichlorophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one CAS 866149-08-8
| CAS No. | 866149-08-8 |
| Molecular Formula | C19H13Cl2NO |
| Molecular Weight | 342.22 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 2-[(E)-(3,4-Dichlorophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one.
CATO supplies 2-[(E)-(3,4-Dichlorophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one (CAS 866149-08-8), a certified reference material (molecular formula C19H13Cl2NO, MW 342.22 g/mol) for analytical method development and quality control.
The molecular framework of 2-[(E)-(3,4-Dichlorophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one (C19H13Cl2NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-[(E)-(3,4-Dichlorophenyl)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-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 | C19H13Cl2NO |
| Molecular Weight | 342.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
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Recommended Standards
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- Z-DL-Phe-OH (CAS 3588-57-6)
- (+/-)-2-Acetylaminobutanoic Acid-d (CAS 114285-09-5)
- 2-(3-Chlorophenyl)-2,2-difluoroethanethioamide (CAS 1334146-97-2)
- Methyl 8-isopropyl-2-methylimidazo[1,2-b]pyridazine-7-carboxylate (CAS 2434602-70-5)
- 4-{[1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]formamido}-N-[(4-methylphenyl)methyl]butanamide (CAS 956959-91-4)
- (S)-2-Hydroxy-2’-[(S)-hydroxy(phenyl)methyl]-[1,1’-binaphthalene] (CAS 1360825-43-9)
- DBCO-PEG5-NHS ester (CAS 2144395-59-3)
- Heptafluoroisopropyl 4-iodo-1,1,2,2-tetrafluorobut-1-yl ether (CAS 25080-20-0)
- 2-(Bromomethyl)-1-ethyl-1h-imidazole (CAS 1420957-14-7)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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