2-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one CAS 733030-56-3

Purity 97%+In StockPharmaceutical Standards
CAS No.733030-56-3
Molecular FormulaC13H15ClN2OS
Molecular Weight282.79 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one CAS 733030-56-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 282.79 g/mol gives 2-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 733030-56-3), a certified reference material (molecular formula C13H15ClN2OS, MW 282.79 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 2-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC13H15ClN2OS
Molecular Weight282.79 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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