1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione CAS 54443-89-9

Purity 97%+In StockPharmaceutical Standards
CAS No.54443-89-9
Molecular FormulaC12H20N2O2S
Molecular Weight256.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione CAS 54443-89-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 256.36 g/mol gives 1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (CAS 54443-89-9), molecular formula C12H20N2O2S and molecular weight 256.36 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (C12H20N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 256.36 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 1,3-Dibutyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione 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 FormulaC12H20N2O2S
Molecular Weight256.36 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms2
Sulfur Atoms1

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