2-(6-Ethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetonitrile CAS 686333-94-8
| CAS No. | 686333-94-8 |
| Molecular Formula | C10H9N3OS |
| Molecular Weight | 219.26 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-(6-Ethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetonitrile (CAS 686333-94-8) is a high-purity analytical reference standard with the molecular formula C10H9N3OS and a molecular weight of 219.26 g/mol.
Based on its molecular formula C10H9N3OS, 2-(6-Ethyl-4-oxothieno[2,3-d]pyrimidin-3(4H)-yl)acetonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C10H9N3OS |
| Molecular Weight | 219.26 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 2-(2-Methyl-4-oxothieno[3,2-c]pyridin-5(4H)-yl)acetic acid (CAS 1172052-56-0)
- 3-(4-Oxothieno[3,2-d]pyrimidin-3(4h)-yl)propanamide (CAS 1241004-18-1)
- 2-(7-Oxothieno[2,3-d]pyridazin-6(7H)-yl)propanoic acid (CAS 118376-66-2)
- Methyl 2-(4-oxothieno[3,2-d]pyrimidin-3(4H)-yl)acetate (CAS 878236-63-6)
- 3-(4-Oxothieno[3,2-d][1,2,3]triazin-3(4H)-yl)propanoic acid (CAS 1707594-08-8)
- 2-(4-Oxothieno[3,2-d][1,2,3]triazin-3(4H)-yl)acetic acid (CAS 1707375-53-8)
- 2-(4-Oxothieno[2,3-d][1,2,3]triazin-3(4H)-yl)acetic acid (CAS 1708428-18-5)
- 2-(4-Oxothieno[3,2-d]pyrimidin-3(4H)-yl)acetic acid (CAS 16290-53-2)
Recommended Standards
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- 2-(4-phenyl-1,3-thiazol-5-yl)acetic acid (CAS 859482-70-5)
- 2-(Isoquinolin-1-ylsulfanyl)acetic acid (CAS 7521-25-7)
- 4-(3-Methylbenzo[b]thien-2-yl)-2-thiazolamine (CAS 21036-85-1)
- 3-Methyl-N-((1-methyl-1h-pyrazol-4-yl)methyl)cyclohexan-1-amine (CAS 1152976-29-8)
- (2R,3R,4S,5R)-2-(2,6-Bis(methylamino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 28360-91-0)
- (3-Bromo-6,7-dihydro-5H-cyclopenta[b]pyridin-5-yl)methanol (CAS 1935628-73-1)
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- Epinastine Impurity 20 (CAS CATO-C4X-184020)
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- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
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