4-Ethylindoline-2,3-dione CAS 34934-05-9
| CAS No. | 34934-05-9 |
| Molecular Formula | C10H9NO2 |
| Molecular Weight | 175.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Ethylindoline-2,3-dione.
4-Ethylindoline-2,3-dione (CAS 34934-05-9), molecular formula C10H9NO2 and molecular weight 175.18 g/mol, is a CATO reference standard with documented purity and traceability.
4-Ethylindoline-2,3-dione (C10H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-Ethylindoline-2,3-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H9NO2 |
| Molecular Weight | 175.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Ethylindoline Standards
- 6-Ethylindoline-2,3-dione (CAS 90924-07-5)
- 7-Ethylindoline-2,3-dione (CAS 79183-65-6)
- 1-Ethylindoline-3-carbaldehyde (CAS 1706463-83-3)
- 1-Ethylindoline-2-carbaldehyde (CAS 1823369-69-2)
- 1-Ethylindoline-5-carbaldehyde (CAS 876716-77-7)
- 1-ethylindoline-6-carbonitrile (CAS 1123169-33-4)
- N-Ethylindoline-2-carboxamide (CAS 1484697-22-4)
- N-Ethylindoline-4-carboxamide (CAS 1706448-38-5)
Recommended Standards
- 4-Ethoxybenzoyl cyanide (CAS 62869-42-5)
- 4-Fluorobenzenesulfonamide (CAS 402-46-0)
- 4-Cyanobenzyl acetate (CAS 21388-95-4)
- 4-Hydroxy-2-methoxyquinoline (CAS 342412-18-4)
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-methylbutan-1-one (CAS 101558-04-7)
- (5-((4-Bromophenyl)sulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl 2-methylbenzoate (CAS 318289-22-4)
- 1-Ethyl-5-methyl-1H-pyrazole-3-carboxamide (CAS 863752-20-9)
- 2-chloro-5-fluoro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1638768-28-1)
- (S)-2,2-Difluorocyclopropanecarboxylic acid, 97% (CAS 1883301-82-3)
- 2-Bromo-5-methoxy-N,N-dimethylbenzylamine (CAS 10126-37-1)
- Ethyl (5-ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)carbamate (CAS 921862-98-8)
- 8-chloropurine (CAS 17587-87-0)
- 5-[(E)-2-[(4-Chlorophenyl)amino]ethenyl]-3-(2,6-dichlorophenyl)-1,2-oxazole-4-carbonitrile (CAS 338394-20-0)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
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