5-Chloro-2,6-dimethoxy-4-methyl-8-nitroquinoline CAS 189746-21-2
| CAS No. | 189746-21-2 |
| Molecular Formula | C12H11ClN2O4 |
| Molecular Weight | 282.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.68 g/mol gives 5-Chloro-2,6-dimethoxy-4-methyl-8-nitroquinoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Chloro-2,6-dimethoxy-4-methyl-8-nitroquinoline (CAS 189746-21-2), a certified reference material (molecular formula C12H11ClN2O4, MW 282.68 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chloro-2,6-dimethoxy-4-methyl-8-nitroquinoline is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-2,6-dimethoxy-4-methyl-8-nitroquinoline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11ClN2O4 |
| Molecular Weight | 282.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- [1-(2-Chlorobenzyl)-2,5-dioxoimidazolidin-4-yl]acetic acid (CAS 1955506-43-0)
- (E)-2-(((2,5-dimethylphenyl)imino)methyl)-6-methoxyphenol (CAS 303770-09-4)
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- Tert-butyl methyl((3R,4R)-4-methylpyrrolidin-3-yl)carbamate (CAS 250275-04-8)
- Methyl 4-(3-aminopyridin-4-yl)piperazine-1-carboxylate (CAS 1156433-06-5)
- 3-(2-Methoxyethyl)-4-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 1340598-53-9)
- 4-(Phenylselanyl)aniline (CAS 16089-79-5)
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- 2-(3-Chlorophenyl)isonicotinic acid (CAS 1207725-71-0)
- (3AS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-5H-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran (CAS 20881-03-2)
- Peptide Impurity 26 (CAS 1350456-66-4)
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