3-Methyl-6-(1-methylhydrazinyl)-2-(methylthio)pyrimidin-4(3H)-one CAS 7401-93-6
| CAS No. | 7401-93-6 |
| Molecular Formula | C7H12N4OS |
| Molecular Weight | 200.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Methyl-6-(1-methylhydrazinyl)-2-(methylthio)pyrimidin-4(3H)-one (CAS 7401-93-6), molecular formula C7H12N4OS and molecular weight 200.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Methyl-6-(1-methylhydrazinyl)-2-(methylthio)pyrimidin-4(3H)-one (C7H12N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 200.26 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C7H12N4OS |
| Molecular Weight | 200.26 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 6-(1-Methylhydrazinyl)-3-propylpyrimidine-2,4(1H,3H)-dione (CAS 65150-49-4)
- 2-(1-Methylhydrazinyl)-4-(trifluoromethyl)pyrimidine (CAS 1372711-01-7)
- 2-(1-Methylhydrazinyl)-5-(trifluoromethyl)pyridine (CAS 163620-24-4)
- 2-(1-Methylhydrazinyl)-6-(trifluoromethyl)pyridine (CAS 163620-27-7)
- 2-(1-Methylhydrazinyl)-3-(trifluoromethyl)pyridine (CAS 175205-68-2)
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- 3-(1-Methylhydrazinyl)benzo[d]isothiazole 1,1-dioxide (CAS 303064-94-0)
- 5-(1-Methylhydrazinyl)-2-phenylpyridazin-3(2H)-one (CAS 98767-49-8)
Recommended Standards
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- 4-((2-Hydroxypropyl)thio)-2-methylpyrimidin-5-ol (CAS 91036-39-4)
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- (1R,3s,5S)-tert-Butyl 3-fluoro-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 478866-37-4)
- (1R,3S)-3-methylcyclohexan-1-ol (CAS 24965-91-1)
- 4-Chloro-4,4-difluoro-1-(4-fluorophenyl)butane-1,3-dione (CAS 164342-74-9)
- 1-(2-fluoro-5-methylphenyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 796967-18-5)
- Methyl (R)-3-amino-3-(naphthalen-2-yl)propanoate (CAS 886061-25-2)
- (S)-Ethyl 3-hydroxy-4-iodobutanoate (CAS 112100-39-7)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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