[(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate CAS 321429-80-5

Purity 97%+In StockPharmaceutical Standards
CAS No.321429-80-5
Molecular FormulaC21H18ClF3N2O3
Molecular Weight438.83 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate CAS 321429-80-5 chemical structure

Description

Structurally, [(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate (C21H18ClF3N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 438.83 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

[(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate (CAS 321429-80-5) is a high-purity analytical reference standard with the molecular formula C21H18ClF3N2O3 and a molecular weight of 438.83 g/mol.

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), [(3Z)-5-Chloro-2-oxo-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate 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 FormulaC21H18ClF3N2O3
Molecular Weight438.83 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°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 ContentF/Cl-containing
Nitrogen Atoms2

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