1-(methyl-d3)-2,3-dihydro-1H-indole-2,3-dione CAS 91790-36-2

Purity 97%+In StockPharmaceutical Standards
CAS No.91790-36-2
Molecular Formula-
Molecular Weight164.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(methyl-d3)-2,3-dihydro-1H-indole-2,3-dione CAS 91790-36-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 164.18 g/mol gives 1-(methyl-d3)-2,3-dihydro-1H-indole-2,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 1-(methyl-d3)-2,3-dihydro-1H-indole-2,3-dione (CAS 91790-36-2), a certified reference material (molecular formula C9H4D3NO2, MW 164.18 g/mol) for analytical method development and quality control.

1-(methyl-d3)-2,3-dihydro-1H-indole-2,3-dione (C9H4D3NO2) contains deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC9H4D3NO2
Molecular Weight164.18 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms1

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