Ethyl 5-Aminoindole-2-carboxylate CAS 71086-99-2
| CAS No. | 71086-99-2 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 5-Aminoindole-2-carboxylate (CAS 71086-99-2), molecular formula C11H12N2O2 and molecular weight 204.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H12N2O2, Ethyl 5-Aminoindole-2-carboxylate 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 204.23 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).
As a certified reference material (CRM), Ethyl 5-Aminoindole-2-carboxylate 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 | C11H12N2O2 |
| Molecular Weight | 204.23 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 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.) | 1977 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- Ethyl 6-Aminoindole-7-carboxylate (CAS 174311-79-6)
- Ethyl 2-Aminoindole-3-carboxylate (CAS 6433-72-3)
- Methyl 4-Aminoindole-3-carboxylate (CAS 1149360-30-4)
- Methyl 4-Aminoindole-6-carboxylate (CAS 121561-15-7)
- 7-Aminoindole-5-carboxylic acid methyl ester (CAS 1352398-14-1)
- Methyl 5-Aminoindole-3-carboxylate (CAS 686747-19-3)
- 1-Boc-4-aminoindole (CAS 885270-30-4)
- Aminoindole-1-carboxylic Acid tert-Butyl Ester (CAS 219508-62-0)
Recommended Standards
- Ethyl 5-amino-1H-indole-1-carboxylate (CAS 203710-10-5)
- Ethyl 5-methyl-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 823217-70-5)
- Ethyl 4-methylpyrazolo[1,5-a]pyridine-3-carboxylate (CAS 55899-17-7)
- Ethyl 5-methyl-1H-pyrrolo[2,3-c]pyridine-2-carboxylate (CAS 800401-90-5)
- 2,2,2-Trifluoroacetanilide (CAS 404-24-0)
- 6,8-Dibromo-1H-benzo[d][1,3]oxazine-2,4-dione (CAS 54754-60-8)
- 6-Methoxy-1-methylquinolin-1-ium iodide (CAS 21979-59-9)
- 2-(1-Ethyl-1h-pyrazol-4-yl)-2-fluoroacetic acid (CAS 1507749-69-0)
- trans-4-Octylcyclohexanecarboxylic acid (CAS 38289-32-6)
- (2,6-Dibromo-3-methoxyphenyl)methanol (CAS 2247439-06-9)
- 3-(2-Fluoroethoxy)benzonitrile (CAS 132838-24-5)
- 3-Chlorobenzenesulfonyl chloride 3-chlorobenzene-1-sulfonylchloride 3-chlorobenzenesulfonylchloride 3-chloro-benzenesulfonyl chloride 3-chlorobenzene-1-sulfonyl chloride 3-chlorobenzenesulphonyl chloride 2888-06-4 (CAS 2888-06-4)
- cis-3-Methoxy-3-methylcyclobutan-1-amine hydrochloride (CAS 2388474-69-7)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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