2-(Benzylthio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(1H)-one CAS 324036-21-7
| CAS No. | 324036-21-7 |
| Molecular Formula | C17H16N2OS2 |
| Molecular Weight | 328.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Benzylthio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(1H)-one (CAS 324036-21-7), molecular formula C17H16N2OS2 and molecular weight 328.45 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 2-(Benzylthio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 328.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H16N2OS2 |
| Molecular Weight | 328.45 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Benzylthio Standards
- 5-(Benzylthio)-4-chloro-2-phenylpyridazin-3(2H)-one (CAS 16461-34-0)
- 4-(Benzylthio)-5-chloro-2-phenylpyridazin-3(2H)-one (CAS 20142-47-6)
- 2-(Benzylthio)-4-(pyrrolidin-1-yl)thieno[3,2-d]pyrimidine (CAS 339018-94-9)
- 4-(3-(Benzylthio)-2-ethylphenyl)morpholin-3-one (CAS 1182728-10-4)
- 6-(Benzylthio)-9-(tetrahydrofuran-2-yl)-9H-purin-2-amine (CAS 93312-54-0)
- 6-(Benzylthio)-4-(4-chlorophenyl)-1,3,5-triazin-2(1H)-one (CAS 62460-55-3)
- Ethyl 2-(benzylthio)-7-hydroxy-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 51646-43-6)
- 8-(Benzylthio)-3-methyl-7-propyl-3,7-dihydro-1H-purine-2,6-dione (CAS 189149-65-3)
Recommended Standards
- 2-(Benzo[d]thiazol-2-ylthio)-N-(2,5-dimethylphenyl)acetamide (CAS 332898-67-6)
- 2-(Ethylthio)-N-(4-methylbenzo[d]thiazol-2-yl)benzamide (CAS 886915-58-8)
- 1-Tritylpiperazine (CAS 32422-96-1)
- 2,2'-(5-(tert-Butyl)-1,3-phenylene)bis(4,4-dimethyl-4,5-dihydrooxazole) (CAS 915032-89-2)
- 1-[6-Methyl-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl]piperazine hydrochloride (CAS 2377609-42-0)
- ((1S,3R,4R)-2-(2-Fluoroethyl)-2-azabicyclo[2.2.1]heptan-3-yl)methanol (CAS 2454490-61-8)
- 1-Bromodibenzo[b,d]furan-4-amine (CAS 50548-39-5)
- 2-Bromo-4-(3-(trifluoromethyl)phenyl)thiazole (CAS 887625-72-1)
- (4-(1H-pyrazol-1-yl)-2-(trifluoromethyl)phenyl)boronic acid (CAS 2225155-29-1)
- 2-{[2-(4-methylpiperazin-1-yl)-1,3-thiazol-5-yl]methyl}-2,3-dihydro-1H-isoindole-1,3-dione (CAS 685109-19-7)
- 6-Iodo-N'-(3-methylbutanoyl)imidazo[1,2-a]pyridine-2-carbohydrazide (CAS 860787-44-6)
- 7-Chloro-1-(3-methylphenyl)-1-oxoheptane (CAS 898785-29-0)
- 2,5-diamino-6-nitro-3,4-dihydroquinazolin-4-one (CAS 103884-20-4)
- Tirzepatide Impurity 25 X TFA Salt (CAS CATO-C4X-324025)
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