Methyl 4,6-dimethyl-5,7-dioxo-4,5,6,7-tetrahydrothiazolo[5,4-d]pyrimidine-2-carboxylate CAS 78387-95-8
| CAS No. | 78387-95-8 |
| Molecular Formula | C9H9N3O4S |
| Molecular Weight | 255.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 4,6-dimethyl-5,7-dioxo-4,5,6,7-tetrahydrothiazolo[5,4-d]pyrimidine-2-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.
Methyl 4,6-dimethyl-5,7-dioxo-4,5,6,7-tetrahydrothiazolo[5,4-d]pyrimidine-2-carboxylate (CAS 78387-95-8), molecular formula C9H9N3O4S and molecular weight 255.25 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 4,6-dimethyl-5,7-dioxo-4,5,6,7-tetrahydrothiazolo[5,4-d]pyrimidine-2-carboxylate (C9H9N3O4S) 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 | C9H9N3O4S |
| Molecular Weight | 255.25 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 | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (4,4-Dimethylpyrrolidin-3-yl)methanol (CAS 1784059-76-2)
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