5-((3,4-Dichlorophenyl)amino)-6-hydroxy-2-(methylthio)pyrimidin-4(3H)-one CAS 91064-37-8
| CAS No. | 91064-37-8 |
| Molecular Formula | C11H9Cl2N3O2S |
| Molecular Weight | 318.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 318.18 g/mol gives 5-((3,4-Dichlorophenyl)amino)-6-hydroxy-2-(methylthio)pyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-((3,4-Dichlorophenyl)amino)-6-hydroxy-2-(methylthio)pyrimidin-4(3H)-one (CAS 91064-37-8), a certified reference material (molecular formula C11H9Cl2N3O2S, MW 318.18 g/mol) for analytical method development and quality control.
5-((3,4-Dichlorophenyl)amino)-6-hydroxy-2-(methylthio)pyrimidin-4(3H)-one (C11H9Cl2N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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).
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.
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 | C11H9Cl2N3O2S |
| Molecular Weight | 318.18 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
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- N-(3,4-dichlorophenyl)-2-((1-methyl-1H-tetrazol-5-yl)thio)acetamide (CAS 329078-59-3)
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Recommended Standards
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- 2-((4-Amino-5-(2,4-dichlorophenyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 587013-75-0)
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- 4-(1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-7-yl)butanoic acid (CAS 1268335-64-3)
- 4-Chloro-2-cyclopropyl-6-(2-(trifluoromethyl)phenyl)pyrimidine (CAS 1159819-79-0)
- 3-Perfluorooctyl-5-phenylpyrazole (CAS 1029650-61-0)
- 3-Amino-1-propyl-1H-pyrazole-4-carboxylic acid (CAS 1798536-53-4)
- 6-(4-Aminophenyl)-1,3-diazinane-2,4-dione (CAS 90840-43-0)
- 1-Chloro-4-methoxy-2-methyl-3-nitrobenzene (CAS 861792-41-8)
- 2,2,8,8-Tetramethyl-3,6-nonadiyn-5-ol (CAS 50428-39-2)
- 3-Phenyl-N-(2,2,2-trifluoroethyl)propan-1-amine (CAS 1020933-11-2)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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