1-(5-Amino-2,4-diphenylthieno[2,3-d]pyrimidin-6-yl)ethanone CAS 72431-56-2

Purity 97%+In StockPharmaceutical Standards
CAS No.72431-56-2
Molecular FormulaC20H15N3OS
Molecular Weight345.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(5-Amino-2,4-diphenylthieno[2,3-d]pyrimidin-6-yl)ethanone CAS 72431-56-2 chemical structure

Description

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

1-(5-Amino-2,4-diphenylthieno[2,3-d]pyrimidin-6-yl)ethanone (CAS 72431-56-2), molecular formula C20H15N3OS and molecular weight 345.42 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-(5-Amino-2,4-diphenylthieno[2,3-d]pyrimidin-6-yl)ethanone (C20H15N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 345.42 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).

As a certified reference material (CRM), 1-(5-Amino-2,4-diphenylthieno[2,3-d]pyrimidin-6-yl)ethanone 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 FormulaC20H15N3OS
Molecular Weight345.42 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Nitrogen Atoms3
Sulfur Atoms1

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