2-((3-Ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide CAS 851409-32-0
| CAS No. | 851409-32-0 |
| Molecular Formula | C18H21N3O3S2 |
| Molecular Weight | 391.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-((3-Ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide.
2-((3-Ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 851409-32-0) is a high-purity analytical reference standard with the molecular formula C18H21N3O3S2 and a molecular weight of 391.51 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-((3-Ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 391.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-((3-Ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H21N3O3S2 |
| Molecular Weight | 391.51 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Recommended Standards
- 1-Butyl-4-(1-(2-(o-tolyloxy)ethyl)-1H-benzo[d]imidazol-2-yl)pyrrolidin-2-one (CAS 912896-42-5)
- 2-((5-(Benzylthio)-1,3,4-thiadiazol-2-yl)thio)-N-(3-fluorophenyl)acetamide (CAS 477331-44-5)
- (S)-tert-butyl (5-amino-6-oxo-6-(4-(pyridin-4-yl)piperazin-1-yl)hexyl)carbamate (CAS 204692-66-0)
- 2-(3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-6-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 865658-02-2)
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