3-Methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid CAS 79932-64-2
| CAS No. | 79932-64-2 |
| Molecular Formula | C8H6N2O3S |
| Molecular Weight | 210.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-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.
3-Methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid (CAS 79932-64-2) is a high-purity analytical reference standard with the molecular formula C8H6N2O3S and a molecular weight of 210.21 g/mol.
3-Methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid (C8H6N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O3S |
| Molecular Weight | 210.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 3,3'-Sulfonyldipropanoic Acid (CAS 6291-88-9)
- 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]thiazine-6-carboxylic acid (CAS 443956-14-7)
- 2-Methyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid (CAS 32278-56-1)
- 4-Hydroxy-1-phenylphosphinane 1-oxide (CAS 23855-90-5)
- 3-Chloropyridine-4-thiol (CAS 1247828-52-9)
- 5-Azidoquinoline (CAS 20377-01-9)
- 2-(4-Nitrophenyl)-1,5,6-triphenylpyrimidin-4(1H)-one (CAS 88317-21-9)
- 5-Methylthiophene-3-thiol (CAS 2634-17-5)
- {[3-(2-Dimethylamino-5-trifluoromethyl-pyridin-3-yl)-benzyl]-methyl-amino}-acetic acid ethyl ester (CAS 1311278-96-2)
- 1-Benzyl-3-cyano-1H-pyrrole-2-carboxylic acid (CAS 105788-28-1)
- 3-Amino-7-methoxyquinoline dihydrochloride (CAS 1216228-63-5)
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- tert-Butyl 2-(((S)-2-aminopropanamido)methyl)pyrrolidine-1-carboxylate (CAS 1354029-62-1)
- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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