2-((2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)methylene)hydrazinecarbothioamide CAS 13545-08-9
| CAS No. | 13545-08-9 |
| Molecular Formula | C6H7N5O2S |
| Molecular Weight | 213.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-((2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)methylene)hydrazinecarbothioamide (CAS 13545-08-9), molecular formula C6H7N5O2S and molecular weight 213.22 g/mol, is a CATO reference standard with documented purity and traceability.
2-((2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)methylene)hydrazinecarbothioamide (C6H7N5O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C6H7N5O2S |
| Molecular Weight | 213.22 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Dioxo Standards
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Recommended Standards
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- (Pyr11)-Amyloid β-Protein (11-40) (CAS 192377-94-9)
- [(3-Ethoxypyridin-2-yl)methyl]amine (CAS 1353867-96-5)
- 5-Amino-2-fluoro-3-(trifluoromethyl)benzoic acid (CAS 874838-43-4)
- (2R,3R,4R,5S,6R)-2-((benzoyloxy)methyl)-5-hydroxy-6-(p-tolylthio)tetrahydro-2H-pyran-3,4-diyl dibenzoate (CAS 1882063-03-7)
- 4-Chloro-3-(methylsulfonyl)pyridine (CAS 1346535-76-9)
- 3-(3,4-Dimethylpyridin-2-yl)propan-1-amine (CAS 1393552-40-3)
- 3-Methoxy-N-(1-methoxypropan-2-yl)aniline (CAS 1249656-21-0)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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