Thieno[3,2-d]pyrimidine-7-carboxamide CAS 1356015-68-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1356015-68-3
Molecular FormulaC7H5N3OS
Molecular Weight179.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Thieno[3,2-d]pyrimidine-7-carboxamide CAS 1356015-68-3 chemical structure

Description

Thieno[3,2-d]pyrimidine-7-carboxamide (CAS 1356015-68-3) is a high-purity analytical reference standard with the molecular formula C7H5N3OS and a molecular weight of 179.20 g/mol.

Structurally, Thieno[3,2-d]pyrimidine-7-carboxamide (C7H5N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 179.20 g/mol, it falls into the medium-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), Thieno[3,2-d]pyrimidine-7-carboxamide 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 FormulaC7H5N3OS
Molecular Weight179.20 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms3
Sulfur Atoms1

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