2-Chloro-5H,6H,7H-pyrimido[4,5-b][1,4]thiazin-6-one CAS 1691673-42-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1691673-42-3 |
| Molecular Formula | C6H4ClN3OS |
| Molecular Weight | 201.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 2-Chloro-5H,6H,7H-pyrimido[4,5-b][1,4]thiazin-6-one (CAS 1691673-42-3) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C6H4ClN3OS. Molecular weight: 201.63 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C6H4ClN3OS |
| Molecular Weight | 201.63 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-N-(3-fluoro-4-methylphenyl)acetamide (CAS 100599-62-0)
- 3-Chloro-n-(3-fluorophenyl)propanamide (CAS 100638-26-4)
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Recommended Standards
- 2-Chloro-N-(2-fluorophenyl)propanamide (CAS 160322-25-8)
- N-(2-Chloro-4-fluoro-6-methylphenyl)acetamide (CAS 1710696-26-6)
- (2-chloroÂethylÂ)-4-fluoroÂbenzÂamide (CAS 15258-01-2)
- (3-Chloro-1-methoxypropyl)benzene (CAS 4446-91-7)
- 2-(Trifluoromethyl)-5,6,7,8-tetrahydroquinoline-6-carboxylic acid (CAS 1154743-13-1)
- 9-Chloro-2,3,6,7-tetramethoxy-9,10-dihydroanthracene (CAS 919273-05-5)
- 4-Hydroxyphenyl dimethylcarbamate (CAS 37522-02-4)
- 2-{1-[(4-oxo-3,4-dihydroquinazolin-2-yl)methyl]pyrrolidin-2-yl}acetic acid (CAS 1304266-32-7)
- 4,4-Difluoropyrrolidine-2-carboxylicacidhydrochloride (CAS 1354949-90-8)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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