4-Methoxy-1-methyl-1H-indole-3-carboxylic acid CAS 889944-30-3
| CAS No. | 889944-30-3 |
| Molecular Formula | C11H11NO3 |
| Molecular Weight | 205.21 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 4-Methoxy-1-methyl-1H-indole-3-carboxylic acid.
4-Methoxy-1-methyl-1H-indole-3-carboxylic acid (CAS 889944-30-3) is a high-purity analytical reference standard with the molecular formula C11H11NO3 and a molecular weight of 205.21 g/mol.
The molecular framework of 4-Methoxy-1-methyl-1H-indole-3-carboxylic acid (C11H11NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C11H11NO3 |
| Molecular Weight | 205.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- (5-Methoxy-1h-indol-2-yl)acetic acid (CAS 1018591-50-8)
- 2-(6-Methoxy-1H-indol-3-yl)acetic acid (CAS 103986-22-7)
- 5-Methoxy-1H-indol-6-yl acetate (CAS 112919-69-4)
- 6-Methoxy-4-methyl-1H-indole-2-carboxylic acid (CAS 1158787-40-6)
- 5-Methoxy-7-methyl-3-hydrozinyl-2-oxindole (CAS 1167447-04-2)
- 2-(4-Methoxy-1H-indol-1-yl)acetic acid (CAS 1219556-76-9)
- 3-methoxy-4-(5-methyl-1,3,4-oxadiazol-2-yl)aniline (CAS 1239719-68-6)
- 6-Methoxy-2-methyl-1H-indole-3-carboxylic acid (CAS 1260382-52-2)
Recommended Standards
- 4-Methoxy-1-methyl-1h-indole-2-carboxylic acid (CAS 739365-06-1)
- 4-Methoxy-3-(5-methyl-1,3,4-oxadiazol-2-yl)aniline (CAS 936074-58-7)
- 4-Methoxy-1H-indole-2-carbohydrazide (CAS 893730-78-4)
- 4-Methoxy-5-methyl-1H-indole-2-carboxylic acid (CAS 50536-48-6)
- 2,6-Bis-(2-methyl-allyl)-1,2,3,6-tetrahydro-pyridine (CAS 439125-79-8)
- Ethyl 5-acetyl-2-ethoxybenzoate (CAS 216143-90-7)
- (2S)-dimethyl 8-acetyl-6-hydroxy-3,3a,8,8a-tetrahydropyrrolo[2,3-b]indole-1,2(2H)-dicarboxylate (CAS 79465-86-4)
- 4-Fluoro-N-(pyrimidin-5-ylmethyl)aniline (CAS 1339776-07-6)
- 3-Ethoxy-5-(trifluoromethyl)picolinic acid (CAS 257862-54-7)
- ((4-(2-Chlorophenoxy)phenyl)sulfonyl)methionine (CAS 1009715-74-5)
- 5-ISOTHIAZOLAMINE (CAS 82357-92-4)
- 2,2,2-Trifluoroethyl 4-sulfamoylpiperazine-1-carboxylate (CAS 1241008-24-1)
- 5,7-Dichloro-N-ethyl-N-phenylthiazolo[4,5-d]pyrimidine-2-sulfonamide (CAS 1000573-46-5)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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