4-(2-Oxo-2,3-dihydro-1H-indol-3-yl)butanoic acid CAS 2971-18-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2971-18-8 |
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Oxo-2,3-dihydro-1H-indol-3-yl)butanoic acid (CAS 2971-18-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H13NO3. Molecular weight: 219.24 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H13NO3 |
| Molecular Weight | 219.24 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 chloroform, dichloromethane, ethyl acetate, 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.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-(2-Oxa-6-azaspiro[3.3]heptan-6-yl)benzoic acid (CAS 2162769-30-2)
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- 4-(2-Formyl-6-methoxyphenoxy)butanenitrile (CAS 928712-02-1)
- 4-Phenylcyclohexanecarboxylic Acid (CAS 7494-76-0)
- N-benzyl-2-((2,3-dichlorophenyl)thio)-N-(4-methoxyphenyl)acetamide (CAS 860788-20-1)
- 3-(2-(Bromomethyl)pentyl)thiophene (CAS 1487998-12-8)
- 1-(1H-indol-2-yl)ethan-1-ol (CAS 52098-27-8)
- 18-Mercaptooctadecanoic acid (CAS 600730-11-8)
- 2-(Cyclopropylamino)-6-(trifluoromethyl)nicotinic acid (CAS 1531398-84-1)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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