Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate CAS 305343-76-4

Purity 97%+In StockPharmaceutical Standards
CAS No.305343-76-4
Molecular FormulaC25H25NO8S3
Molecular Weight563.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate CAS 305343-76-4 chemical structure

Description

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 563.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate (CAS 305343-76-4) is a high-purity analytical reference standard with the molecular formula C25H25NO8S3 and a molecular weight of 563.66 g/mol.

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), Tetramethyl 5,5,8-trimethyl-5,6-dihydrospiro[thiopyrano[2,3-c]quinoline-1,2'-[1,3]dithiole]-2,3,4',5'-tetracarboxylate 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 FormulaC25H25NO8S3
Molecular Weight563.66 g/mol
Purity97%+
StorageStore at room temperature, 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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1
Sulfur Atoms3

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