(3Z)-1-Ethyl-1h-indole-2,3-dione 3-oxime CAS 3922-17-6
| CAS No. | 3922-17-6 |
| Molecular Formula | C10H10N2O2 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3Z)-1-Ethyl-1h-indole-2,3-dione 3-oxime (CAS 3922-17-6) is a high-purity analytical reference standard with the molecular formula C10H10N2O2 and a molecular weight of 190.20 g/mol.
(3Z)-1-Ethyl-1h-indole-2,3-dione 3-oxime (C10H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C10H10N2O2 |
| Molecular Weight | 190.20 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, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (3-Cyanobenzyl)glycine (CAS 926252-79-1)
- (4-(5-Methyl-1,2,4-oxadiazol-3-yl)phenyl)methanol (CAS 852180-61-1)
- (3-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl)methanol (CAS 916766-84-2)
- (4-Cyanobenzyl)glycine (CAS 328552-85-8)
- 4-Chloro-3-nitrophenylsulphur pentafluoride (CAS 165114-87-4)
- (4S,5S)-5-Ethyl-4-isopropyloxazolidin-2-one (CAS 114744-95-5)
- 4-Chloro-8-methoxy-2,6-dimethylquinoline (CAS 1315346-91-8)
- 1-Cyclohexyl-1H-imidazo[4,5-b]pyridin-2-ol (CAS 906532-83-0)
- N-{3-[(2-Bromoacetyl)amino]phenyl}-4-(tert-butyl)benzamide (CAS 1138443-10-3)
- 831-82-3 D83R742GJR p-Phenoxyphenol Phenol, p-phenoxy- (8CI) Phenol, 4-phenoxy- 4-Phenoxyphenol EINECS 212-611-1 p-Hydroxydiphenyl ether 4-Hydroxydiphenyl ether NSC 25027 UNII-D83R742GJR (CAS 831-82-3)
- N-(4,5-dihydrothiazol-2-yl)-1-phenylcyclopentane-1-carboxamide (CAS 1022735-89-2)
- 7-Chloro-1-(6-chloropyridin-3-yl)heptan-1-one (CAS 914203-41-1)
- 2,4-Dichloro-6-phenylthieno[3,2-d]pyrimidine (CAS 36926-41-7)
- Peptide 441 (CAS CATO-CPTD788441)
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