4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline CAS 81536-07-4

Purity 97%+In StockPharmaceutical Standards
CAS No.81536-07-4
Molecular FormulaC18H19NO4
Molecular Weight313.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline CAS 81536-07-4 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline.

4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline (CAS 81536-07-4), molecular formula C18H19NO4 and molecular weight 313.35 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline (C18H19NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 313.35 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).

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), 4,7-Dimethoxy-8-((3-methylbut-2-en-1-yl)oxy)furo[2,3-b]quinoline 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 FormulaC18H19NO4
Molecular Weight313.35 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980
Nitrogen Atoms1

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