Ethyl 6-amino-5-methoxy-3H-indole-2-carboxylate hydrochloride CAS 1189986-62-6
| CAS No. | 1189986-62-6 |
| Molecular Formula | C12H14N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 6-amino-5-methoxy-3H-indole-2-carboxylate hydrochloride (CAS 1189986-62-6), molecular formula C12H14N2O3HCl and molecular weight 270.71 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H14N2O3HCl, Ethyl 6-amino-5-methoxy-3H-indole-2-carboxylate hydrochloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 270.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H14N2O3 HCl |
| Molecular Weight | 270.71 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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Recommended Standards
- Undecylprodigiosin (CAS 52340-48-4)
- 7-Isopropyl-1,2,3,4-tetrahydroquinoline (CAS 746560-21-4)
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- 3-(2-Bromophenyl)-N,N-diethylpropanamide (CAS 1704065-15-5)
- 2-Fluoro-6-(1h-imidazol-1-yl)pyridine (CAS 1250924-92-5)
- 2,2-difluoro-1-(3-fluoro-4-methoxyphenyl)ethan-1-amine hydrochloride (CAS 1803604-95-6)
- 4-((3-Methylpentan-2-yl)amino)butan-2-ol (CAS 1342575-49-8)
- Somatostatin Impurity 8 (CAS CATO-C4X-23508)
- 2,5,7-Tribromobenzo[d]thiazole, 97% (CAS 1190321-91-5)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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