Ethyl 4-amino-1-methyl-1H-indole-2-carboxylate CAS 91119-15-2
| CAS No. | 91119-15-2 |
| Molecular Formula | C12H14N2O2 |
| Molecular Weight | 218.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 4-amino-1-methyl-1H-indole-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.
Ethyl 4-amino-1-methyl-1H-indole-2-carboxylate (CAS 91119-15-2) is a high-purity analytical reference standard with the molecular formula C12H14N2O2 and a molecular weight of 218.25 g/mol.
Ethyl 4-amino-1-methyl-1H-indole-2-carboxylate (C12H14N2O2) 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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H14N2O2 |
| Molecular Weight | 218.25 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.) | 1983 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- (R)-2-(Pyrrolidin-3-yl)acetonitrile (CAS 1290142-58-3)
- (S)-2-amino-N-cyclohexyl-4-methylpentanamide (CAS 67582-42-7)
- tert-Butyl 2-(3,5-dimethyl-1H-pyrazol-4-yl)azepane-1-carboxylate (CAS 1706546-35-1)
- 2-((5-(Trifluoromethyl)pyridin-2-yl)oxy)ethan-1-amine (CAS 898272-88-3)
- Papaverine Impurity 36 (CAS 82463-46-5)
- 2-(5-methyl-1,2,4-oxadiazol-3-yl)propan-2-amine hydrochloride (CAS 1240526-27-5)
- (2S)-1-methyl-5-oxopyrrolidine-2-carboxylic acid (CAS 52574-06-8)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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