6-Amino-2-thioxo-1,2-dihydropyrimidine-5-carboxylic acid CAS 875-60-5
| CAS No. | 875-60-5 |
| Molecular Formula | C5H5N3O2S |
| Molecular Weight | 171.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 171.18 g/mol gives 6-Amino-2-thioxo-1,2-dihydropyrimidine-5-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 6-Amino-2-thioxo-1,2-dihydropyrimidine-5-carboxylic acid (CAS 875-60-5), a certified reference material (molecular formula C5H5N3O2S, MW 171.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H5N3O2S, 6-Amino-2-thioxo-1,2-dihydropyrimidine-5-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.18 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).
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 | C5H5N3O2S |
| Molecular Weight | 171.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 6-Amino-5-nitropyridine-2(1H)-thione (CAS 1516841-23-8)
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Recommended Standards
- 4,6-Diamino-2-mercapto-5-nitrosopyrimidine (CAS 59150-27-5)
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- Apigenin6-C-α-L-arabinopyranosyl-8-C-β-D-xylopyranoside (CAS 677021-30-6)
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