2-Hydrazinyl-3-methylthieno[3,2-d]pyrimidin-4(3H)-one CAS 1158413-84-3
| CAS No. | 1158413-84-3 |
| Molecular Formula | C7H8N4OS |
| Molecular Weight | 196.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Hydrazinyl-3-methylthieno[3,2-d]pyrimidin-4(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2-Hydrazinyl-3-methylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 1158413-84-3), molecular formula C7H8N4OS and molecular weight 196.23 g/mol, is a CATO reference standard with documented purity and traceability.
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.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Hydrazinyl Standards
- 4-Hydrazinyl-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 74525-94-3)
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- 2-HYDRAZINYL-4-(2-METHYL-1,3-DIOXOLAN-2-YL)PYRIDINE (CAS 80882-43-5)
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Recommended Standards
- 3-(2-Hydroxyethyl)-3h,4h-thieno[3,2-d]pyrimidin-4-one (CAS 1155610-54-0)
- 3-methyl-6-(methylsulfanyl)-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 1190399-71-3)
- 3-Amino-4-methanesulfonylbenzonitrile (CAS 1153524-12-9)
- 6-Nitro-3,4-dihydro-2H-benzo[b][1,4]thiazine (CAS 1193387-98-2)
- 1-Butene, polymer with sulfur dioxide (CAS 25104-10-3)
- 2,2-Dimethyl-3-(4-piperidyl)-1-propanol (CAS 203662-02-6)
- 2-(2,4-difluorophenyl)-Cyclopropanemethanamine (CAS 1267351-42-7)
- 2-(4-(tert-Butyl)phenyl)-4-(piperidin-1-yl)quinoline (CAS 853310-47-1)
- (E)-1-(3-chloroprop-1-en-1-yl)-3-methoxybenzene (CAS 478930-89-1)
- 2-[({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-thiazole-4-carboxylic acid (CAS 182120-85-0)
- 3-(2,3-Dimethylphenyl)-1-(4-fluorophenyl)propan-1-one (CAS 898769-50-1)
- ethyl 8-cyano-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 127285-75-0)
- 1-(2-Bromoethyl)-1H-imidazole hydrobromide (CAS 94614-84-3)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
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