3-Acetyl-6,8-dichloro-2H-1-benzopyran-2-one CAS 2199-91-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2199-91-9 |
| Molecular Formula | C11H6Cl2O3 |
| Molecular Weight | 257.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 3-Acetyl-6,8-dichloro-2H-1-benzopyran-2-one (CAS 2199-91-9) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C11H6Cl2O3. Molecular weight: 257.07 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C11H6Cl2O3 |
| Molecular Weight | 257.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 methanol, ethanol, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 3-(Chlorosulfonyl)-4-fluorobenzoyl chloride (CAS 671-93-2)
- 3-Iodo-1-methyl-1H-indole (CAS 85092-84-8)
- 2-Iodo-1-methyl-1H-indole (CAS 75833-63-5)
- 4-Hydroxypiperidine-4-carbonitrile hydrochloride (CAS 1375472-85-7)
- 4-Chloro-3-cyano-2-methylbenzoic acid (CAS 1805497-50-0)
- 5-[2-(trifluoromethyl)phenyl]-1H-pyrazol-3-amine hydrochloride (CAS 1290901-36-8)
- Cefditoren Impurity 47 (CAS 2410655-60-4)
- 2-((Benzo[d][1,3]dioxol-5-ylamino)methylene)malononitrile (CAS 1025997-07-2)
- Tenofovir disoproxil Impurity 136 (CAS CATO-C4X-1076136)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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