3,4,7-Trimethyl-1H-indole-2-carboxylic acid CAS 876715-79-6
| CAS No. | 876715-79-6 |
| Molecular Formula | C12H13NO2 |
| Molecular Weight | 203.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3,4,7-Trimethyl-1H-indole-2-carboxylic 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.
3,4,7-Trimethyl-1H-indole-2-carboxylic acid (CAS 876715-79-6), molecular formula C12H13NO2 and molecular weight 203.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H13NO2, 3,4,7-Trimethyl-1H-indole-2-carboxylic acid 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 203.24 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.
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 | C12H13NO2 |
| Molecular Weight | 203.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Trimethyl Standards
- 1,3,7-Trimethyl-1H-indole-2-carboxylic acid (CAS 1015846-77-1)
- 1,4,6-Trimethyl-1h-indole-2-carboxylic acid (CAS 1158754-20-1)
- 2-(1,3,5-Trimethyl-1H-pyrazol-4-yl)pyrimidin-4-amine (CAS 1248104-45-1)
- 2-(3,4,5-Trimethyl-1H-pyrazol-1-yl)pyrimidin-5-amine (CAS 1249440-06-9)
- 2,3,3-trimethyl-3H-indole-4-carboxylic acid (CAS 1361397-78-5)
- 3,4,6-Trimethyl-1H-indole-2-carboxylic acid (CAS 1368950-70-2)
- 1,3,4-Trimethyl-1H-indole-2-carboxylic acid (CAS 1417358-40-7)
- 1,2,3-Trimethyl-1h-indole-5-carboxylic acid (CAS 356773-97-2)
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