Ethyl 4-(3-(3,3-dimethylureido)phenyl)-1,6-dimethyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate CAS 5993-54-4

Purity 97%+In StockPharmaceutical Standards
CAS No.5993-54-4
Molecular FormulaC18H24N4O3S
Molecular Weight376.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 4-(3-(3,3-dimethylureido)phenyl)-1,6-dimethyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate CAS 5993-54-4 chemical structure

Description

As a certified reference material (CRM), Ethyl 4-(3-(3,3-dimethylureido)phenyl)-1,6-dimethyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate 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.

Ethyl 4-(3-(3,3-dimethylureido)phenyl)-1,6-dimethyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 5993-54-4) is a high-purity analytical reference standard with the molecular formula C18H24N4O3S and a molecular weight of 376.47 g/mol.

Structurally, Ethyl 4-(3-(3,3-dimethylureido)phenyl)-1,6-dimethyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (C18H24N4O3S) 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 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 376.47 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).

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.

Physical & Chemical Properties

Molecular FormulaC18H24N4O3S
Molecular Weight376.47 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms4
Sulfur Atoms1

Related Ethyl Standards

Recommended Standards

Why CATO?