6-Chloro-1H-benzo[d][1,3]oxazin-2(4H)-one CAS 21500-69-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21500-69-6 |
| Molecular Formula | C8H6ClNO2 |
| Molecular Weight | 183.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-Chloro-1H-benzo[d][1,3]oxazin-2(4H)-one (CAS 21500-69-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H6ClNO2. Molecular weight: 183.59 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H6ClNO2 |
| Molecular Weight | 183.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 6-(Chloromethyl)benzo[d]isoxazol-3(2H)-one (CAS 947408-97-1)
- 6-Chloro-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 7652-29-1)
- 6-(Chloromethyl)-2,3-dihydro-1,3-benzoxazol-2-one (CAS 207552-71-4)
- KI 8751 (CAS 228559-41-9)
- N-Nitroso Moxonidine (CAS CATO-C4X-27816)
- 7-Methoxy-3,4-dihydroisoquinolin-6-ol (CAS 4602-77-1)
- 2-(3-Chloro-5-(trifluoromethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1803320-97-9)
- 5-Amino-1-benzyl-3-methyl-1H-pyrazole-4-carbonitrile (CAS 168465-06-3)
- 2-{[(2H-1,3-benzodioxol-5-yl)amino]methyl}-4-bromophenol (CAS 329777-36-8)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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