[(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate CAS 320420-83-5

Purity 97%+In StockPharmaceutical Standards
CAS No.320420-83-5
Molecular FormulaC18H15ClN2O3
Molecular Weight342.78 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate CAS 320420-83-5 chemical structure

Description

Based on its molecular formula C18H15ClN2O3, [(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate 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 342.78 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

[(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 320420-83-5), molecular formula C18H15ClN2O3 and molecular weight 342.78 g/mol, is a CATO reference standard with documented purity and traceability.

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 manufactures [(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 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 FormulaC18H15ClN2O3
Molecular Weight342.78 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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 AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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