5,7-Dimethyl-1H-indole-2-carboxylic acid CAS 221675-45-2
| CAS No. | 221675-45-2 |
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,7-Dimethyl-1H-indole-2-carboxylic acid.
CATO supplies 5,7-Dimethyl-1H-indole-2-carboxylic acid (CAS 221675-45-2), a certified reference material (molecular formula C11H11NO2, MW 189.21 g/mol) for analytical method development and quality control.
5,7-Dimethyl-1H-indole-2-carboxylic acid (C11H11NO2) contains an amino-acid-derived structure, an amide 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 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).
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), 5,7-Dimethyl-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 | C11H11NO2 |
| Molecular Weight | 189.21 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.) | 2020 |
| Nitrogen Atoms | 1 |
Related Dimethyl Standards
- 2,3-Dimethyl-1H-indole-6-carboxylic acid (CAS 103986-06-7)
- 2,3-Dimethyl-1H-indole-7-carboxylic acid (CAS 103986-07-8)
- 4,7-Dimethyl-1H-indole-2-carboxylic acid (CAS 103988-96-1)
- 2,7-Dimethyl-1H-indole-3-carboxylic acid (CAS 1227270-31-6)
- n-((1,5-Dimethyl-1h-pyrazol-4-yl)methyl)-2,2-difluoroethan-1-amine (CAS 1245808-54-1)
- 3,6-Dimethyl-1H-indole-2-carboxylic acid (CAS 1260913-57-2)
- Ethyl 3,3-dimethyl-4-nitrobutanoate (CAS 130912-54-8)
- 2,2-Dimethyl-2H-pyrano[3,2-b]pyridine-6-carbaldehyde (CAS 1342891-16-0)
Recommended Standards
- 5,7-Dimethoxyisoquinoline (CAS 55087-24-6)
- 5,7-Dimethyl-1H-indole-3-carboxylic acid (CAS 948581-66-6)
- 5,7-Diamino-2-methylquinolin-8-ol (CAS 677761-30-7)
- 5,7-Dimethylimidazo[1,2-a]pyridine-2-carboxamide (CAS 70705-37-2)
- 2-Benzyl-1-methylquinazolin-4(1H)-one hydrobromide (CAS 1089329-03-2)
- (1-(2,4-Difluorobenzyl)piperidin-3-yl)methanol (CAS 415702-40-8)
- 2-(4-Nitrophenyl)-1,5,6-triphenylpyrimidin-4(1H)-one (CAS 88317-21-9)
- 4-Bromo-6-(difluoromethyl)-5-methylpyridine-2-sulfonyl chloride (CAS 1805250-31-0)
- N-(2-((4-bromophenyl)sulfinyl)ethyl)-2-(4-chlorophenyl)acetamide (CAS 477710-80-8)
- 6-Bromo-8-methyl-2-propylquinolin-4-amine (CAS 1189105-94-9)
- ISOPROPYLIDENE-D-XYLOFURANOSE, 1,2- (CAS 25990-10-7)
- 917562-02-8 7,8-Dichloro-2-methylquinolin-4-amine DTXSID00588914 (CAS 917562-02-8)
- 1-(3-Fluorobenzyl)-1h-1,2,3-triazol-4-amine (CAS 1443288-10-5)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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