Ethyl 4-chloro-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylate CAS 148838-70-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 148838-70-4 |
| Molecular Formula | C11H11ClN2O2S |
| Molecular Weight | 270.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-chloro-2,5-dimethylthieno[2,3-d]pyrimidine-6-carboxylate (CAS 148838-70-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H11ClN2O2S. Molecular weight: 270.74 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H11ClN2O2S |
| Molecular Weight | 270.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(3-Chlorophenyl)-4-(ethylsulfonyl)-1H-pyrazole (CAS 1707567-07-4)
- 4-(2-Chlorophenyl)-3-(ethylsulfonyl)-1H-pyrazole (CAS 1708259-41-9)
- (1-Benzyl-1h-pyrazol-4-yl)methanesulfonyl chloride (CAS 1341634-39-6)
- 4-Chloro-1-methyl-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1785088-62-1)
- N-(2,2-dimethylthietan-3-yl)-6-methylpyridin-2-amine (CAS 1855362-01-4)
- (4-ethylcyclohexyl)methanamine (CAS 1096790-46-3)
- N-(2-aminocyclohexyl)methanesulfonamide (CAS 1057676-79-5)
- 4-Methoxy-3-methylpyridine (CAS 96609-78-8)
- 1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one (CAS 67074-80-0)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com