1-(3,5-Dichloro-4-hydroxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-one CAS 1022530-75-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1022530-75-1
Molecular FormulaC17H17Cl2NO2
Molecular Weight338.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(3,5-Dichloro-4-hydroxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-one CAS 1022530-75-1 chemical structure

Description

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(3,5-Dichloro-4-hydroxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

1-(3,5-Dichloro-4-hydroxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-one (CAS 1022530-75-1), molecular formula C17H17Cl2NO2 and molecular weight 338.23 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.

As a certified reference material (CRM), 1-(3,5-Dichloro-4-hydroxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-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 FormulaC17H17Cl2NO2
Molecular Weight338.23 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Halogen ContentCl-containing
Nitrogen Atoms1

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