5-Ethyl-1-(hydroxymethyl)indoline-2,3-dione CAS 690225-90-2
| CAS No. | 690225-90-2 |
| Molecular Formula | C11H11NO3 |
| Molecular Weight | 205.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H11NO3, 5-Ethyl-1-(hydroxymethyl)indoline-2,3-dione contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies 5-Ethyl-1-(hydroxymethyl)indoline-2,3-dione (CAS 690225-90-2), a certified reference material (molecular formula C11H11NO3, MW 205.21 g/mol) for analytical method development and quality control.
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), 5-Ethyl-1-(hydroxymethyl)indoline-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 | C11H11NO3 |
| Molecular Weight | 205.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-[3-(Hydroxymethyl)-1H-indol-1-yl]acetic acid (CAS 138423-99-1)
- Methyl 2-(hydroxymethyl)-1H-indole-5-carboxylate (CAS 190071-26-2)
- 1-(Hydroxymethyl)-6-methoxyisoquinolin-7-ol (CAS 677725-58-5)
- 2-(2-(Hydroxymethyl)-1H-indol-3-yl)acetic acid (CAS 63158-57-6)
- 3-(Hydroxymethyl)-6-methoxyquinolin-2(1H)-one (CAS 90097-46-4)
- 4-(3-(Hydroxymethyl)isoxazol-5-yl)-2-methylphenol (CAS 2644031-04-7)
- 4-(3-(Hydroxymethyl)isoxazol-5-yl)-3-methylphenol (CAS 2644031-03-6)
- 4-(Hydroxymethyl)-4-methyl-2-phenyloxazol-5(4H)-one (CAS 474651-48-4)
Recommended Standards
- 5-Ethoxyindole-3-carboxylic Acid (CAS 92288-43-2)
- 5-Ethyl-5-(pyridin-4-yl)imidazolidine-2,4-dione (CAS 6294-55-9)
- 5-Ethoxy-1H-indole-2-carboxylic acid (CAS 93476-60-9)
- 5-Fluoro-2-methoxybenzene-1-sulfonamide (CAS 444-54-2)
- 1-Propyl-[1,4]bipiperidinyl-3-carboxylic aciddihydrochloride (CAS 1185304-74-8)
- 3-((4-Chlorobenzyl)thio)-1-phenyl-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile (CAS 315246-88-9)
- n-(Cyclohexylmethyl)benzenesulfonamide (CAS 26914-53-4)
- L-(+)-2-Chlorophenylglycine methyl ester hydrochloride (CAS 213018-92-9)
- Ethyl 2,4-Dichloro-6-methylpyrimidine-5-carboxylate (CAS 36802-47-8)
- 2-Ethyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 885272-75-3)
- 2-Hydrazinyl-4,5-dimethylthiazole hydrochloride (CAS 128608-50-4)
- 7-Chloro-4-(4-methylbenzenesulfonyl)-3,4-dihydro-2H-1,4-benzothiazine (CAS 338777-99-4)
- 2-(bromomethyl)-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine (CAS 2853612-96-9)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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