2-(2-Chlorophenyl)-4H-thieno[3,2-d][1,3]oxazin-4-one CAS 140406-73-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 140406-73-1 |
| Molecular Formula | C12H6ClNO2S |
| Molecular Weight | 263.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-Chlorophenyl)-4H-thieno[3,2-d][1,3]oxazin-4-one (CAS 140406-73-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H6ClNO2S. Molecular weight: 263.70 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H6ClNO2S |
| Molecular Weight | 263.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- ((2-Chlorophenyl)sulfonyl)alanine (CAS 250714-73-9)
- ((4-Chlorophenyl)sulfonyl)-L-alanine (CAS 59724-70-8)
- 3-((3-Chlorophenyl)sulfonamido)propanoic acid (CAS 690646-02-7)
- 6-(4-Chlorophenyl)-4-oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 70638-56-1)
- N-(3-Chlorophenyl)-N-(methylsulfonyl)glycine (CAS 363177-78-0)
- N-(4-chlorophenyl)-N-(methylsulfonyl)glycine (CAS 425415-44-7)
- 3-(3-Chlorophenyl)-3h-[1,2,3]triazolo[4,5-d]pyrimidine-7-thiol (CAS 1082530-99-1)
- n-[(3-chlorophenyl)methyl]-4-fluorobenzamide (CAS 895696-66-9)
Recommended Standards
- 1-Chloro-4-nitro-2-(propylsulfonyl)benzene (CAS 1375473-16-7)
- 2-Chloro-4-[methyl(methylsulfonyl)amino]benzoic acid (CAS 158580-15-5)
- methyl N-[4-(chlorosulfonyl)-2-methylphenyl]carbamate (CAS 1368895-01-5)
- 3-Ethyl-6,7-dihydro-5H-cyclopenta[b]isoxazolo[4,5-e]pyridine-4-carboxylic acid (CAS 1263211-49-9)
- N1,N2-dibenzylphthalamide (CAS 38228-99-8)
- 4-Chloro-1-(pyrazin-2-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 1522996-42-4)
- 5-Nitro-1-pentanol (CAS 21823-27-8)
- 3-Chloro-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-one (CAS 1256806-34-4)
- 1-(2-Methoxy-5-methylphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1152535-19-7)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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