1-Methyl-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one CAS 5417-83-4
| CAS No. | 5417-83-4 |
| Molecular Formula | C7H8N4OS |
| Molecular Weight | 196.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methyl-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 5417-83-4), molecular formula C7H8N4OS and molecular weight 196.23 g/mol, is a CATO reference standard with documented purity and traceability.
1-Methyl-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (C7H8N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H8N4OS |
| Molecular Weight | 196.23 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- (2-(Methylthio)furo[2,3-d]pyrimidin-6-yl)methanol (CAS 649558-78-1)
- (E)-3-(2-(Methylthio)pyrimidin-5-yl)acrylic acid (CAS 915924-30-0)
- 1-Methyl-6-(methylthio)-1,2-dihydro-3H-pyrazolo[3,4-d]pyrimidin-3-one (CAS 89853-01-0)
- 2-(2-(Methylthio)pyrimidin-4-yl)malonaldehyde (CAS 77168-37-7)
- 5-Methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one (CAS 89853-03-2)
- 5-Methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 40775-78-8)
- 5-Methyl-3-(methylthio)-[1,2,4]triazolo[4,3-a]pyrimidin-7(8H)-one (CAS 91912-60-6)
- 7-Methyl-2-(methylthio)-3H-purin-6(7H)-one (CAS 39013-80-4)
Recommended Standards
- 2-(1-Cyano-1-methylethyl)-1,3-thiazole-4-carboxylic acid (CAS 878742-23-5)
- 1-Methanesulfonyl-1h-1,3-benzodiazole (CAS 43215-10-7)
- 1-Ethyl-6-sulfanyl-1H-pyrazolo[3,4-d]pyrimidin-4-ol (CAS 832746-55-1)
- 2-(4-Aminobenzenesulfonyl)acetonitrile (CAS 797036-00-1)
- D 729 (CAS 644-34-8)
- 1-Ethyl-N-(5-(isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)-5-methyl-1H-pyrazole-3-carboxamide (CAS 1171189-47-1)
- 2-(((4-Chloropyridin-2-yl)oxy)methyl)benzonitrile (CAS 1346707-15-0)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-(1H-pyrazol-1-yl)thiophen-2-yl)boronate (CAS 2223029-59-0)
- 4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonamide (CAS 1427460-72-7)
- Methyl 2-chloro-4-methoxybenzoate (CAS 104253-45-4)
- 3-Phenyl-2-(2-phenylacetamido)propanoic acid (CAS 54582-05-7)
- 1-Chloro-N,N-diisopropyl-1-(methylthio)phosphanamine (CAS 121667-95-6)
- 2-(2,6-Dimethylpiperidine-1-carbothioylsulfanyl)acetic acid (CAS 852388-91-1)
- Liraglutide-d8 Tetratrifluoroacetate (CAS 204656-20-2 (non-labelled, free base))
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