Methyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate CAS 79641-44-4

Purity 97%+In StockPharmaceutical Standards
CAS No.79641-44-4
Molecular FormulaC14H17NO4
Molecular Weight263.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate CAS 79641-44-4 chemical structure

Description

The occurrence of Methyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Methyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate (CAS 79641-44-4), molecular formula C14H17NO4 and molecular weight 263.29 g/mol, is a CATO reference standard with documented purity and traceability.

Methyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate (C14H17NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC14H17NO4
Molecular Weight263.29 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Nitrogen Atoms1

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