3-Chloro-2-(methylsulfonyl)benzo[f]quinoxaline CAS 1628332-59-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1628332-59-1 |
| Molecular Formula | C13H9ClN2O2S |
| Molecular Weight | 292.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-2-(methylsulfonyl)benzo[f]quinoxaline (CAS 1628332-59-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H9ClN2O2S. Molecular weight: 292.74 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H9ClN2O2S |
| Molecular Weight | 292.74 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Ethyl 4-chlorobenzo[4,5]thieno-[2,3-d]pyrimidine-6-carboxylate (CAS 1537184-72-7)
- 7-Chloro-1-(phenylsulfonyl)-1H-pyrrolo[3,2-b]pyridine (CAS 1682655-04-4)
- 1-(5-Chloro-2-methylphenyl)-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1416346-20-7)
- N-(1-Cyano-1-cyclopropylethyl)-2-(5-(p-tolyl)-2H-tetrazol-2-yl)acetamide (CAS 926163-22-6)
- 3-bromofuro[3,2-b]pyridine-5-carboxylic acid (CAS 1781797-87-2)
- 2-(5-Methylfuran-2-yl)acetic acid (CAS 72360-04-4)
- tert-Butyl (4-(2-chloroacetamido)butyl)carbamate, 97% (CAS 133264-58-1)
- 2-(4-Bromo-3-chloro-2-methylphenyl)-1,3-dioxolane (CAS 2221812-33-3)
- 2,5-Difluorobenzothiohydrazide 2,2,2-trifluoroacetate (CAS 1956363-93-1)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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