5-methoxy-4-nitro-1H-indole-3-carboxylic acid CAS 135531-95-2
| CAS No. | 135531-95-2 |
| Molecular Formula | C10H8N2O5 |
| Molecular Weight | 236.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-methoxy-4-nitro-1H-indole-3-carboxylic acid (CAS 135531-95-2), a certified reference material (molecular formula C10H8N2O5, MW 236.18 g/mol) for analytical method development and quality control.
5-methoxy-4-nitro-1H-indole-3-carboxylic acid (C10H8N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H8N2O5 |
| Molecular Weight | 236.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related methoxy Standards
- 7-Methoxy-5-nitroindole-2-carboxylic Acid (CAS 1082041-82-4)
- 5-Methoxy-7-nitro-1h-indole-2-carboxylic acid (CAS 13838-45-4)
- 8-Methoxy-2-nitroindolizine-7-carboxylic acid (CAS 1706455-40-4)
- 2-Methoxy-1-(4-(trifluoromethoxy)phenyl)ethan-1-ol (CAS 1476729-68-6)
- 1-(2-Methoxy-5-(trifluoromethoxy)phenyl)ethanol (CAS 468074-91-1)
- 3-methoxy-4-[(trifluoromethyl)sulfanyl]benzaldehyde (CAS 1311316-18-3)
- Methyl 5-methoxy-3-(trifluoromethyl)pyrazine-2-carboxylate (CAS 2770349-32-9)
- 7-Methoxy-2-(methoxymethyl)pyrazolo[1,5-a]pyridine-4-carboxylic acid (CAS 1009602-42-9)
Recommended Standards
- Ethyl 4-nitrobenzo[d]isoxazole-3-carboxylate (CAS 1352396-63-4)
- 7-Hydroxy-2-methyl-5-nitro-1H-indole-3-carboxylic acid (CAS 1360936-96-4)
- 2-Amino-6-(5-methylfuran-2-yl)-5-nitropyrimidin-4-ol (CAS 1202402-41-2)
- Methyl 1-hydroxy-6-nitro-1H-indole-4-carboxylate (CAS 1082042-02-1)
- N-(5-benzoyl-6-methyl-2-oxo-2H-pyran-3-yl)benzamide (CAS 127143-19-5)
- 2-{[(3,4-dichlorophenyl)methyl]sulfanyl}-5-(4-pentylcyclohexyl)-1,3,4-oxadiazole (CAS 685108-60-5)
- (Z)-N'-[(2,4-Dichlorophenyl)methoxy]pyridine-2-carboximidamide (CAS 338753-69-8)
- 1-Methyl-2-(1-methyl-1h-pyrazol-4-yl)-6-oxopiperidine-3-carboxamide (CAS 1315366-28-9)
- 4-(2-Benzyl-2H-tetrazol-5-yl)benzene-1,2-diol (CAS 1092204-92-6)
- (1-Benzylpyrrolidin-3-yl)methyl 4-methylbenzenesulfonate (CAS 111627-58-8)
- 5-Amino-1-(2-methylbenzyl)-N-(thiophen-2-ylmethyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899981-96-5)
- 5-Amino-1-naphthalenesulfonic Acid, 90% (CAS 84-89-9)
- N-(sec-butyl)-4-(2-ethylbutanoyl)-1H-pyrrole-2-carboxamide (CAS 478249-16-0)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
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