7-Methoxy-1H-indole-4-carbaldehyde CAS 85598-16-9
| CAS No. | 85598-16-9 |
| Molecular Formula | C10H9NO2 |
| Molecular Weight | 175.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Methoxy-1H-indole-4-carbaldehyde (CAS 85598-16-9), a certified reference material (molecular formula C10H9NO2, MW 175.18 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 7-Methoxy-1H-indole-4-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 175.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C10H9NO2 |
| Molecular Weight | 175.18 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 | 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.) | 1981 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- Methyl 3-((2-methoxy-2-oxoethyl)amino)propanoate (CAS 105240-68-4)
- n-Methoxy-N-methyl-1,4-dioxane-2-carboxamide (CAS 1214900-98-7)
- 5-Methoxy-3-methyleneisoindolin-1-one (CAS 1239331-79-3)
- 4-Methoxy-1H-indole-5-carbaldehyde (CAS 1367982-08-8)
- 5-Methoxy-3-phenylisoxazole (CAS 18803-02-6)
- 1-Methoxy-1H-indole-3-carbaldehyde (CAS 67282-55-7)
- 1-methoxyÂÂmorpholine methylÂcarbamate (CAS 78999-68-5)
- 4-Methoxy-1H-indole-2-carbaldehyde (CAS 213682-04-3)
Recommended Standards
- 7-Methoxy-1H-indole-2-carbaldehyde (CAS 30464-91-6)
- 7-Methoxy-2(1H)-quinolinone (CAS 23981-26-2)
- 7-Hydroxy-6-methylisoquinolin-1(2H)-one (CAS 74919-41-8)
- 7-Methoxy-2,3-dihydrobenzofuran-5-carbonitrile (CAS 363185-43-7)
- 4,7-dichloro-1H-1,3-benzimidazole (CAS 21295-91-0)
- 1-(5-(4-Chlorophenyl)-1,2,4-oxadiazol-3-yl)ethan-1-amine (CAS 1250083-05-6)
- 4-Butyl-N-(isoindolin-5-yl)benzenesulfonamide (CAS 784137-02-6)
- Methyl 2-((1-(cyclohexylsulfonyl)pyrrolidin-3-yl)thio)acetate (CAS 1795299-12-5)
- 2-(Azetidin-1-ylsulfonyl)acetic acid (CAS 1156635-08-3)
- 1-Ethyl-3-methyl-3-phospholene 1-oxide (CAS 7529-24-0)
- Poly(oxy-1,2-ethanediyl), α-(2-aminoethyl)-ω-[2-[[3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-1-oxopropyl]amino]ethoxy]- (CAS 1207751-12-9)
- 5-Bromo-4-chloropyridin-2(1H)-one (CAS 1381937-58-1)
- Crotamiton EP Impurity D (CAS 13936-60-2)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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