3-[(3,4,5-trimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid CAS 380574-32-3
| CAS No. | 380574-32-3 |
| Molecular Formula | C23H21NO5 |
| Molecular Weight | 391.42 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 3-[(3,4,5-trimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid.
3-[(3,4,5-trimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid (CAS 380574-32-3), molecular formula C23H21NO5 and molecular weight 391.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H21NO5, 3-[(3,4,5-trimethoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 391.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H21NO5 |
| Molecular Weight | 391.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related trimethoxyphenyl Standards
- 1-{4-[(2E)-3-(3,4,5-Trimethoxyphenyl)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 1365988-77-7)
- N-(3-(6-((3,4,5-Trimethoxyphenyl)amino)pyrazin-2-yl)phenyl)acetamide (CAS 856005-74-8)
- 6-(3,4,5-Trimethoxyphenyl)-5,6-dihydrobenzo[4,5]imidazo[1,2-c]quinazoline (CAS 387371-82-6)
- 5-(3,4,5-Trimethoxyphenyl)-5,5a,8a,9-tetrahydrofuro[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(8H)-one (CAS 69222-20-4)
- 4'-(3,4,5-Trimethoxyphenyl)-2,2':6',2''-terpyridine (CAS 144780-85-8)
- 3-Oxo-3-(2,3,4-trimethoxyphenyl)propionic acidethyl ester (CAS 38975-83-6)
- 345637-82-3 1-(2,3,4-Trimethoxyphenyl)-2,3,4,9-tetrahydro-1H-beta-carboline-3-carboxylic acid MFCD00810239 (CAS 345637-82-3)
- 9-Butyl-8-((3,4,5-trimethoxyphenyl)sulfinyl)-9H-purin-6-amine (CAS 827302-62-5)
Recommended Standards
- 2-((3,5-Difluoro-4-hydroxyphenyl)amino)-8-isopentyl-5,7-dimethyl-7,8-dihydropteridin-6(5H)-one (CAS 501437-28-1)
- 4,4,4-(Pyridine-2,4,6-triyl)tribenzaldehyde (CAS 2230887-26-8)
- 2-((((2S,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl)thio)ethanesulfonic acid (CAS 84211-32-5)
- 4-Methyl-2-(naphthalen-1-yl)-6-(phenylamino)quinazoline-5,8-dione (CAS 61416-88-4)
- (5-Ethyl-1,3,4-thiadiazol-2-yl)methanamine hydrochloride (CAS 1211431-82-1)
- 6-Amino-5-(2,2-diethoxyethyl)-2-((3-(4-methylpiperazin-1-yl)phenyl)amino)pyrimidin-4(3H)-one (CAS 1142947-79-2)
- 2,3,3,3-Tetrafluoro-2-methoxypropanamide (CAS 10186-65-9)
- 2-(3-Chlorophenoxy)-4-methylaniline (CAS 946683-44-9)
- 2-[(4-Methyl-1-piperidinyl)methyl]azepane Dioxalate (CAS 1177297-32-3)
- 1-(4-(4-Fluorophenoxy)phenyl)butane-1,3-dione (CAS 942474-08-0)
- 4-(2-(Trifluoromethyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 306936-80-1)
- 3-(Methylsulfanyl)cyclohexan-1-amine (CAS 1315365-18-4)
- 4-(4-ethoxyphenyl)-1,2,3,6-tetrahydropyridine (CAS 1016688-49-5)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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