4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide CAS 303985-85-5

Purity 97%+In StockPharmaceutical Standards
CAS No.303985-85-5
Molecular FormulaC18H14Cl3N3OS
Molecular Weight426.75 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide CAS 303985-85-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 426.75 g/mol gives 4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 303985-85-5) is a high-purity analytical reference standard with the molecular formula C18H14Cl3N3OS and a molecular weight of 426.75 g/mol.

Structurally, 4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide (C18H14Cl3N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 426.75 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).

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), 4-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-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 FormulaC18H14Cl3N3OS
Molecular Weight426.75 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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