6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-one CAS 35118-14-0

Purity 97%+In StockPharmaceutical Standards
CAS No.35118-14-0
Molecular FormulaC18H18N2O3
Molecular Weight310.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-one CAS 35118-14-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 310.35 g/mol gives 6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-one (CAS 35118-14-0), a certified reference material (molecular formula C18H18N2O3, MW 310.35 g/mol) for analytical method development and quality control.

Structurally, 6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-one (C18H18N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 310.35 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 6,7-Dimethoxy-3,4-dihydro-2H-spiro[indole-3,1-isoquinolin]-2(1H)-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 FormulaC18H18N2O3
Molecular Weight310.35 g/mol
AppearancePale yellow to yellow crystalline powder
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
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1967
Nitrogen Atoms2

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