6-Chloro-4-hydroxy-2-methylquinoline-3-carboxylic acid CAS 103566-34-3
| CAS No. | 103566-34-3 |
| Molecular Formula | C11H8ClNO3 |
| Molecular Weight | 237.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 237.64 g/mol gives 6-Chloro-4-hydroxy-2-methylquinoline-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-Chloro-4-hydroxy-2-methylquinoline-3-carboxylic acid (CAS 103566-34-3), molecular formula C11H8ClNO3 and molecular weight 237.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 6-Chloro-4-hydroxy-2-methylquinoline-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.64 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 6-Chloro-4-hydroxy-2-methylquinoline-3-carboxylic acid 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 | C11H8ClNO3 |
| Molecular Weight | 237.64 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 methanol, ethanol, DMSO |
| 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 3-Chloro-5-cyclopropylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1011354-08-7)
- 2-Chloro-8-methoxyquinoline-3-carboxylic acid (CAS 1017157-83-3)
- 1-(3-Chloro-2-methylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1042534-76-8)
- 1-(3-Chloro-4-methylphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1042604-53-4)
- 2-Chloro-6-hydroxy-7-methoxyquinoline-3-carbaldehyde (CAS 1046138-52-6)
- Methyl 8-chloro-4-hydroxyquinoline-2-carboxylate (CAS 1065074-57-8)
- 2-(8-Chloro-4-oxoquinolin-1(4H)-yl)acetic acid (CAS 1092288-62-4)
- 2-(6-Chloro-4-oxoquinolin-1(4H)-yl)acetic acid (CAS 1092288-66-8)
Recommended Standards
- 1-(4-chlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-60-2)
- 1-(2-chlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-59-9)
- 1-(3-Chlorophenyl)-5-methyl-1h-1,2,4-triazole-3-carboxylic acid (CAS 1060795-68-7)
- 5-Amino-3-(3-chlorophenyl)isoxazole-4-carboxamide (CAS 1005509-36-3)
- 2,3-dimethylÂhippuric acid (CAS 187980-99-0)
- 8-Cyclopropyl-8-azabicyclo[3.2.1]octan-3-one (CAS 60206-33-9)
- 1-bromo-2-pentyne (CAS 16400-32-1)
- 3-(2-(Benzylamino)ethyl)quinazoline-2,4(1H,3H)-dione (CAS 883948-67-2)
- 5-Bromo-1,2,3,4-tetrahydrocarbazole (CAS 78863-98-6)
- 1-Ethyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 404586-53-4)
- 2,6-Diazaspiro[3.4]octan-8-one, 2-(2,2,2-trifluoroacetyl)-, 8-(O-methyloxime), (8Z)-, methanesulfonate (1:1) (CAS 1825361-14-5)
- 1-(4-Methoxy-2-methylphenyl)-2-(methylamino)ethan-1-ol (CAS 1487948-40-2)
- Ambroxol Maillard Lactose Impurity 4(Ambroxol Impurity 73) (CAS CATO-C4X-108573)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
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