7-Butyl-5-(ethylthio)-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione CAS 893904-33-1

Purity 97%+In StockPharmaceutical Standards
CAS No.893904-33-1
Molecular FormulaC14H20N4O2S
Molecular Weight308.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Butyl-5-(ethylthio)-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione CAS 893904-33-1 chemical structure

Description

The occurrence of 7-Butyl-5-(ethylthio)-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

7-Butyl-5-(ethylthio)-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione (CAS 893904-33-1), molecular formula C14H20N4O2S and molecular weight 308.40 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 7-Butyl-5-(ethylthio)-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 308.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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 FormulaC14H20N4O2S
Molecular Weight308.40 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms4
Sulfur Atoms1

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