7-Aminothiazolo[4,5-d]pyrimidin-2(3H)-one CAS 122970-56-3
| CAS No. | 122970-56-3 |
| Molecular Formula | C5H4N4OS |
| Molecular Weight | 168.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.18 g/mol gives 7-Aminothiazolo[4,5-d]pyrimidin-2(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Aminothiazolo[4,5-d]pyrimidin-2(3H)-one (CAS 122970-56-3), a certified reference material (molecular formula C5H4N4OS, MW 168.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H4N4OS, 7-Aminothiazolo[4,5-d]pyrimidin-2(3H)-one contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 Formula | C5H4N4OS |
| Molecular Weight | 168.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Aminothiazolo Standards
- 5-Aminothiazolo[4,5-d]pyrimidin-2(3H)-one (CAS 848691-22-5)
- 2-Aminothiazolo[5,4-b]pyridin-5-ol (CAS 31784-73-3)
- 2-Aminothiazolo[4,5-b]pyridin-5(4H)-one (CAS 13575-44-5)
- 2-Aminothiazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione (CAS 30161-91-2)
- 5-Aminothiazolo[4,5-d]pyrimidine-2(3H)-thione (CAS 892498-86-1)
- Methyl 2-aminothiazolo[5,4-b]pyridine-7-carboxylate (CAS 1206248-00-1)
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