6-(Ethylthio)-1H-indole-2-carboxylic acid CAS 910443-11-7
| CAS No. | 910443-11-7 |
| Molecular Formula | C11H11NO2S |
| Molecular Weight | 221.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-(Ethylthio)-1H-indole-2-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6-(Ethylthio)-1H-indole-2-carboxylic acid (CAS 910443-11-7), molecular formula C11H11NO2S and molecular weight 221.28 g/mol, is a CATO reference standard with documented purity and traceability.
6-(Ethylthio)-1H-indole-2-carboxylic acid (C11H11NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 6-(Ethylthio)-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.
Physical & Chemical Properties
| Molecular Formula | C11H11NO2S |
| Molecular Weight | 221.28 g/mol |
| 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 |
| Sulfur Atoms | 1 |
Related Ethylthio Standards
- 2'-(Ethylthio)-3,4,5,6-tetrahydro-2,3'-bipyridine (CAS 1352492-99-9)
- 2-(Ethylthio)-1-(2,4,5-trimethylphenyl)ethan-1-one (CAS 1157204-98-2)
- 2-(Ethylthio)-1-mesitylethan-1-one (CAS 1157205-09-8)
- 2-(Ethylthio)-1-(4-isopropylphenyl)ethan-1-one (CAS 1157205-14-5)
- 2-(Ethylthio)-1-(4-propylphenyl)ethan-1-one (CAS 1157221-67-4)
- 2-(Ethylthio)-3-(piperidin-2-yl)pyridine (CAS 1352512-67-4)
- 1-(Ethylthio)-5-phenylpentan-2-one (CAS 1468828-31-0)
- trans-2-(4-(Ethylthio)phenyl)cyclopentanol (CAS 933674-42-1)
Recommended Standards
- 5-Methyl-4-{[(2-thienylmethyl)amino]methylene}-2,4-dihydro-3H-pyrazol-3-one (CAS 240115-97-3)
- 6,7-Dimethoxyquinoline-4(1H)-thione (CAS 417722-22-6)
- 5-Cyclopropyl-4-(furan-2-ylmethyl)-4h-1,2,4-triazole-3-thiol (CAS 735342-68-4)
- 6,7-Dimethoxyquinoline-4-thiol (CAS 35654-48-9)
- (9-Chloro-3,4-dihydro-2h-1,5-benzodioxepin-7-yl)methanol (CAS 852956-43-5)
- 3-Fluoro-2-(2-methylthiazol-5-yl)benzaldehyde (CAS 2092377-91-6)
- (4S,5R)-5-Isopropyl-2-oxooxazolidine-4-carboxylic acid (CAS 127913-32-0)
- N-(4-Chloro-2-methoxy-phenyl)-3-oxo-butyramide (CAS 16539-51-8)
- GSK-2269557 (CAS 1254036-77-5)
- (4,4-Dioctyl-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl)bis(tributylstannane) (CAS 1009305-80-9)
- 2-(4-Bromophenyl)-5-methylpyrazol-3-amine (CAS 82447-61-8)
- Ethacridine Lactate Impurity 36 (CAS CATO-C4X-260936)
- 1-(2-Chloropyrimidin-4-yl)-1H-pyrrole-2-carbaldehyde (CAS 1355229-53-6)
- Neuropeptide FF (CAS 99566-27-5)
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