6-Chloro-2-oxoindoline-3-carbaldehyde CAS 52508-91-5
| CAS No. | 52508-91-5 |
| Molecular Formula | C9H6ClNO2 |
| Molecular Weight | 195.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H6ClNO2, 6-Chloro-2-oxoindoline-3-carbaldehyde contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 6-Chloro-2-oxoindoline-3-carbaldehyde (CAS 52508-91-5), a certified reference material (molecular formula C9H6ClNO2, MW 195.60 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 | C9H6ClNO2 |
| Molecular Weight | 195.60 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 6-Chloro-5-hydroxyquinolin-2(1H)-one (CAS 1016316-23-6)
- 7-Chloro-1H-indole-6-carboxylic acid (CAS 1055320-72-3)
- 5-Chloro-2-(oxazol-2-yl)phenol (CAS 1070796-25-6)
- 5-Chloro-6-methylindoline-2,3-dione (CAS 107583-35-7)
- 5-Chloro-2-(isoxazol-5-yl)phenol (CAS 107825-97-8)
- 5-Acetyl-2-chloro-4-hydroxybenzonitrile (CAS 115651-31-5)
- 2-Chloro-3-(cyanomethyl)benzoic acid (CAS 1179338-45-4)
- 7-Chloro-2-indolizinecarboxylic acid (CAS 1206974-14-2)
Recommended Standards
- 6-Chloro-2-methyl-4H-benzo[d][1,3]oxazin-4-one (CAS 7033-50-3)
- 6-Chloro-3-hydroxyquinolin-2(1H)-one (CAS 860207-46-1)
- 6-chloro-1H-indole-3-carboxylic acid (CAS 76655-02-2)
- 6-Chloro-5-methylindoline-2,3-dione (CAS 96187-75-6)
- N-Benzyl-2-((1-propyl-1H-indol-3-yl)thio)acetamide (CAS 851412-12-9)
- 3-{[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}quinazoline-2,4(1H,3H)-dione (CAS 1223889-81-3)
- 1-Ethylpiperidin-3-Amine (CAS 6789-94-2)
- 6-(2,6-Difluorophenyl)-6-oxohexanoic acid (CAS 898766-46-6)
- (6-Chloro-2-methylpyridin-3-yl)methanamine (CAS 1251529-73-3)
- 2-Cyano-6-(trifluoromethyl)pyridine-4-sulfonyl chloride (CAS 1393548-15-6)
- (3-Methylcyclohexyl)methanamine (CAS 34147-55-2)
- 1-(3-Bromo-5-fluorophenyl)propan-1-amine (CAS 1270372-06-9)
- 5-(3-Chlorophenoxy)-1,3-dimethyl-N-phenyl-1H-pyrazole-4-carboxamide (CAS 303997-92-4)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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 18665070610 / Nicole.chen@cato-chem.com