6,8-Dichloro-2h-benzo[d][1,3]oxazine-2,4(1h)-dione CAS 4693-00-9
| CAS No. | 4693-00-9 |
| Molecular Formula | C8H3Cl2NO3 |
| Molecular Weight | 232.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,8-Dichloro-2h-benzo[d][1,3]oxazine-2,4(1h)-dione (C8H3Cl2NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 6,8-Dichloro-2h-benzo[d][1,3]oxazine-2,4(1h)-dione (CAS 4693-00-9), a certified reference material (molecular formula C8H3Cl2NO3, MW 232.02 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H3Cl2NO3 |
| Molecular Weight | 232.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 5,7-Dichloro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione (CAS 112734-23-3)
- 3,5-Dichloro-6-nitro-1H-indazole (CAS 1227269-25-1)
- 5,8-Dichloro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione (CAS 144155-85-1)
- 6,7-Dichloro-1,4-dihydropyrido[2,3-b]pyrazine-2,3-dione (CAS 168123-71-5)
- 5,7-Dichloro-1,4-dihydropyrido[3,4-b]pyrazine-2,3-dione (CAS 168123-76-0)
- 2,4-Dichloro-6-methyl-5-nitronicotinonitrile (CAS 847145-54-4)
- 3,5-Dichloro-7-nitro-2H-indazole (CAS 316810-83-0)
- 3,6-Dichloro-4-nitro-2H-indazole (CAS 885522-69-0)
Recommended Standards
- 6,7-Dichloropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 2482820-14-2)
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- 5-Bromo-2,3-difluoro-4-methylbenzonitrile (CAS 2624417-87-2)
- 7-Bromo-4,5-difluoro-1H-indole (CAS 877160-16-2)
- 4-(iodomethyl)-1-phenyl-2-oxabicyclo[2.2.2]octane (CAS 2375194-50-4)
- 3-(4-Isopropoxyphenyl)-3-oxopropanenitrile (CAS 884504-22-7)
- 5,10,15,20-Tetrakis(5-bromothiophen-2-yl)porphyrin (CAS 852982-57-1)
- Paliperidone impurity 146 (CAS CATO-C4X-1724146)
- 5-(Ethylthio)-1,2,4-thiadiazol-3-ol (CAS 56409-44-0)
- tert-Butyl (3R,5R)-3-amino-5-fluoropiperidine-1-carboxylate (CAS 1932247-39-6)
- 2-Bromo-N-cyclopropylacetamide (CAS 77600-79-4)
- 3-(Piperidin-1-ylmethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1310383-69-7)
- a-Bromoheptanoic acid (CAS 2624-01-3)
- FLAG Epitope Peptide (CAS 98849-88-8)
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