4-Chloro-7-ethyl-5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine CAS 874801-57-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 874801-57-7 |
| Molecular Formula | C11H12ClN3S |
| Molecular Weight | 253.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-7-ethyl-5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine (CAS 874801-57-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H12ClN3S. Molecular weight: 253.75 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C11H12ClN3S |
| Molecular Weight | 253.75 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5-(Chloromethyl)-3-(propan-2-yl)-4,5-dihydro-1,2-oxazole (CAS 1311318-05-4)
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- Trifluoro-methanesulfonic acid (chloromethyl)methyl-2-propen-1-ylsilyl ester (CAS 1132657-38-5)
- Ceftazidime Impurity 51 (CAS CATO-C4X-121251)
- 2-Amino-2-(4-(benzyloxy)-3-methoxyphenyl)acetic acid (CAS 299164-71-9)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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