6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid CAS 13166-59-1

Purity 97%+In StockPharmaceutical Standards
CAS No.13166-59-1
Molecular FormulaC6H7N3O2S
Molecular Weight185.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid CAS 13166-59-1 chemical structure

Description

The occurrence of 6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid (CAS 13166-59-1), molecular formula C6H7N3O2S and molecular weight 185.20 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C6H7N3O2S, 6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 6-Amino-5-methyl-2-thioxo-1,2-dihydropyrimidine-4-carboxylic acid 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 FormulaC6H7N3O2S
Molecular Weight185.20 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1960
Nitrogen Atoms3
Sulfur Atoms1

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