5,6-Bis(furan-2-yl)-4-imino-3-phenyl-1H,2H,3H,4H-furo[2,3-d]pyrimidine-2-thione CAS 685106-49-4

Purity 97%+In StockPharmaceutical Standards
CAS No.685106-49-4
Molecular FormulaC20H13N3O3S
Molecular Weight375.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,6-Bis(furan-2-yl)-4-imino-3-phenyl-1H,2H,3H,4H-furo[2,3-d]pyrimidine-2-thione CAS 685106-49-4 chemical structure

Description

5,6-Bis(furan-2-yl)-4-imino-3-phenyl-1H,2H,3H,4H-furo[2,3-d]pyrimidine-2-thione (CAS 685106-49-4), molecular formula C20H13N3O3S and molecular weight 375.40 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5,6-Bis(furan-2-yl)-4-imino-3-phenyl-1H,2H,3H,4H-furo[2,3-d]pyrimidine-2-thione (C20H13N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 375.40 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC20H13N3O3S
Molecular Weight375.40 g/mol
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms3
Sulfur Atoms1

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