5-amino-1-ethyl-3,3-dimethyl-2,3-dihydro-1H-indol-2-one CAS 135437-78-4

Purity 97%+In StockPharmaceutical Standards
CAS No.135437-78-4
Molecular FormulaC12H22N2O
Molecular Weight210.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-amino-1-ethyl-3,3-dimethyl-2,3-dihydro-1H-indol-2-one CAS 135437-78-4 chemical structure

Description

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.

5-amino-1-ethyl-3,3-dimethyl-2,3-dihydro-1H-indol-2-one (CAS 135437-78-4) is a high-purity analytical reference standard with the molecular formula C12H22N2O and a molecular weight of 210.32 g/mol.

Owing to an amide group, a hydroxyl group, an ether linkage, 5-amino-1-ethyl-3,3-dimethyl-2,3-dihydro-1H-indol-2-one is typically white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 210.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 5-amino-1-ethyl-3,3-dimethyl-2,3-dihydro-1H-indol-2-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 FormulaC12H22N2O
Molecular Weight210.32 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1995
Nitrogen Atoms2

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