5-Chloro-7-iodo-8-methoxyquinoline CAS 91240-91-4
| CAS No. | 91240-91-4 |
| Molecular Formula | C10H7ClINO |
| Molecular Weight | 319.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H7ClINO, 5-Chloro-7-iodo-8-methoxyquinoline contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 319.53 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).
CATO supplies 5-Chloro-7-iodo-8-methoxyquinoline (CAS 91240-91-4), a certified reference material (molecular formula C10H7ClINO, MW 319.53 g/mol) for analytical method development and quality control.
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), 5-Chloro-7-iodo-8-methoxyquinoline 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 | C10H7ClINO |
| Molecular Weight | 319.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1983 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 4-Chloro-3-iodo-6-methoxyquinoline (CAS 1190972-42-9)
- 4-Chloro-7-iodo-6-methoxyquinoline (CAS 1268520-28-0)
- 6-Chloro-3-iodo-8-methylquinolin-4(1H)-one (CAS 1330752-77-6)
- 7-Chloro-3-iodo-2-methylquinolin-4(1H)-one (CAS 1330753-24-6)
- 5-Chloro-3-iodo-8-methylquinolin-4(1H)-one (CAS 1330754-67-0)
- 7-Chloro-3-iodo-8-methylquinolin-4(1H)-one (CAS 1330755-21-9)
- N-(5-chloro-2-fluoro-4-iodo-phenyl)acetamide (CAS 2157481-37-1)
- 4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one (CAS 175135-84-9)
Recommended Standards
- 5-(Nonylthio)quinoline-8-thiol (CAS 60465-71-6)
- Ethyl (3-bromo-6-chloroimidazo[1,2-b]pyridazin-2-yl)carbamate (CAS 1172470-59-5)
- Ethyl (8-bromo-5-chloro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)carbamate (CAS 1626336-60-4)
- Ethyl 8-bromo-4-chloro-7-methylpyrazolo[1,5-a][1,3,5]triazine-2-carboxylate (CAS 2365243-38-3)
- 1-(Thiophen-2-yl)propan-2-yl benzenesulfonate (CAS 16736-98-4)
- 2-Amino-4-(aminomethyl)phenol (CAS 1243394-53-7)
- 73216-93-0 (2-Aminophenyl)-N-((((4-chlorophenyl)amino)thioxomethyl)amino)formamide MFCD06199195 (CAS 73216-93-0)
- Fenofibrate Impurity 2 (CAS 62809-66-9)
- 2-((4-Ethoxyphenyl)amino)acetic acid (CAS 67870-18-2)
- 2,4,6-Trichloro-3-hydroxybenzaldehyde (CAS 73664-57-0)
- 2-Bromo-4-methyl-6-(prop-2-en-1-yl)phenol (CAS 2120-17-4)
- 1,1'-(2,4,6-Trihydroxy-1,3-phenylene)diethanone (CAS 2161-86-6)
- (3-Bromopropyl)trichlorosilane (CAS 13883-39-1)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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