1-Methylindole-6-carbaldehyde CAS 21005-45-8
| CAS No. | 21005-45-8 |
| Molecular Formula | C10H9NO |
| Molecular Weight | 159.18 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 1-Methylindole-6-carbaldehyde.
1-Methylindole-6-carbaldehyde (CAS 21005-45-8), molecular formula C10H9NO and molecular weight 159.18 g/mol, is a CATO reference standard with documented purity and traceability.
1-Methylindole-6-carbaldehyde (C10H9NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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.
As a certified reference material (CRM), 1-Methylindole-6-carbaldehyde 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 | C10H9NO |
| Molecular Weight | 159.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | 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.) | 1963 |
| Nitrogen Atoms | 1 |
Related Methylindole Standards
- 2-Methylindole-4-carboxaldehyde (CAS 321922-05-8)
- 3-Methylindole-2-carboxaldehyde (CAS 5257-24-9)
- 6-Methylindole-3-carbaldehyde (CAS 4771-49-7)
- 7-Methylindole-3-carboxyaldehyde (CAS 4771-50-0)
- 3-Methylindole-5-methanamine (CAS 933735-99-0)
- 3-Methylindole-5-carbonitrile (CAS 3613-06-7)
- 1-methylindole-5-carbonitrile (CAS 91634-11-6)
- 1-Methylindole-3-carbonitrile 1-methyl-1H-indole-3-carbonitrile 24662-37-1 (CAS 24662-37-1)
Recommended Standards
- 1-Methylcyclohepta[b]pyrrol-2(1H)-one (CAS 3336-87-6)
- 1-Methylisoquinolin-3(2H)-one (CAS 36073-91-3)
- 1-Methoxyisoquinoline (CAS 23724-93-8)
- 1-Methylisoquinolin-5-ol (CAS 20335-65-3)
- 2-(1H-1,2,3-Triazol-5-yl)ethanamine dihydrochloride (CAS 1225591-25-2)
- 2-(Piperidine-1-sulfonyl)benzonitrile (CAS 440353-70-8)
- 1-(3-Methylbutyl)-1h-indazol-6-amine (CAS 1155099-19-6)
- Moxifloxacin impurity 130 (CAS CATO-C4X-1074130)
- 4-Azido-2,3,5,6-tetrafluorobenzoic Acid (CAS 122590-77-6)
- 1-(2,4-Dichloro-5-isopropoxyphenyl)-N-(2,4-difluorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 400088-29-1)
- n-(1-Acetyl-2,3-dihydro-1h-indol-5-yl)-2-chloroacetamide (CAS 893722-06-0)
- 5-Chloro-2-(2-fluoropyridin-4-yl)pyrimidine-4,6(1H,5H)-dione (CAS 1822822-23-0)
- Mometasone Furoate EP Impurity P (CAS CATO-C4X-170416)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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