2-(2-Oxoindolin-3-yl)acetic acid CAS 2971-31-5
| CAS No. | 2971-31-5 |
| Molecular Formula | C10H15NO3 |
| Molecular Weight | 197.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 197.23 g/mol gives 2-(2-Oxoindolin-3-yl)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(2-Oxoindolin-3-yl)acetic acid (CAS 2971-31-5), a certified reference material (molecular formula C10H15NO3, MW 197.23 g/mol) for analytical method development and quality control.
2-(2-Oxoindolin-3-yl)acetic acid (C10H15NO3) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(2-Oxoindolin-3-yl)acetic acid 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 | C10H15NO3 |
| Molecular Weight | 197.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Oxoindolin Standards
- 2-(2-Oxoindolin-3-ylidene)malononitrile (CAS 6623-89-8)
- Methyl 2-(2-oxoindolin-3-ylidene)acetate (CAS 69953-04-4)
- 2-(2-Oxoindolin-5-yl)acetic acid (CAS 109737-08-8)
- 2-(2-Oxoindolin-4-yl)acetic acid (CAS 122570-32-5)
- (1-Methyl-2-oxoindolin-6-yl)boronic acid (CAS 1260433-35-9)
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- N-(2-oxoindolin-5-yl)acetamide (CAS 114741-27-4)
- N-(2-Oxoindolin-6-yl)acetamide (CAS 58605-01-9)
Recommended Standards
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