3-Chloro-9-ethyl-6-(triphenylsilyl)-9H-carbazole CAS 18765-00-9

Purity 97%+In StockPharmaceutical Standards
CAS No.18765-00-9
Molecular FormulaC32H26ClNSi
Molecular Weight488.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Chloro-9-ethyl-6-(triphenylsilyl)-9H-carbazole CAS 18765-00-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 488.09 g/mol gives 3-Chloro-9-ethyl-6-(triphenylsilyl)-9H-carbazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Chloro-9-ethyl-6-(triphenylsilyl)-9H-carbazole (CAS 18765-00-9), molecular formula C32H26ClNSi and molecular weight 488.09 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 3-Chloro-9-ethyl-6-(triphenylsilyl)-9H-carbazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 488.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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.

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 FormulaC32H26ClNSi
Molecular Weight488.09 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)20.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentCl-containing
Nitrogen Atoms1

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