4-Bromo-5,8-dimethoxyquinoline-3-carboxylic acid CAS 1378261-20-1
| CAS No. | 1378261-20-1 |
| Molecular Formula | C12H10BrNO4 |
| Molecular Weight | 312.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-5,8-dimethoxyquinoline-3-carboxylic acid (CAS 1378261-20-1), molecular formula C12H10BrNO4 and molecular weight 312.12 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, bromine substitution, 4-Bromo-5,8-dimethoxyquinoline-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.12 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 4-Bromo-5,8-dimethoxyquinoline-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 | C12H10BrNO4 |
| Molecular Weight | 312.12 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-methylbut-3-yn-2-yl 4-nitrobenzoate (CAS 100123-29-3)
- 3-bromo-4-[(5-methyl-1,2-oxazol-3-yl)methoxy]benzoic acid (CAS 1049922-12-4)
- 2-(8-Bromo-5-methoxy-2-oxo-1,2-dihydroquinolin-4-yl)acetic acid (CAS 1155270-67-9)
- 3-Bromo-4-[(3-methyl-1,2-oxazol-5-yl)methoxy]benzoic acid (CAS 1221724-03-3)
- n-(5-Bromo-2-methoxyphenyl)-2-(1h-tetrazol-1-yl)acetamide (CAS 1292631-50-5)
- 4-Bromo-6,7-dimethoxyquinoline-3-carboxylic acid (CAS 1378259-75-6)
- 4-Bromo-1-(4-methoxybenzyl)-5-nitro-1H-pyrazole (CAS 1429309-34-1)
- 4-Bromo-1-(4-methoxybenzyl)-3-nitro-1H-pyrazole (CAS 1455366-34-3)
Recommended Standards
- Methyl 2,2-difluoro-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetate (CAS 1415960-55-2)
- Ethyl 4,5-difluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1334164-30-5)
- Methyl 4-((3-bromoisoxazol-5-yl)methoxy)benzoate (CAS 1447949-67-8)
- Methyl 3-acetoxy-6-bromo-1H-indole-4-carboxylate (CAS 1227270-87-2)
- 4-phenylcyclohexane-1-sulfonyl chloride (CAS 1250661-03-0)
- 2-[4-(1H-imidazol-1-yl)phenyl]acetonitrile (CAS 143426-57-7)
- [(4-Methoxyphenyl)(2-oxo-2-{[2-(trifluoromethyl)-benzyl]amino}ethyl)amino]acetic acid (CAS 1142204-35-0)
- Brexpiprazole Impurity 67 (CAS CATO-C4X-113167)
- 2-(4-(Difluoromethoxy)phenyl)piperidine (CAS 1152583-20-4)
- 2-(3-Formyl-1H-indol-1-yl)-N-(p-tolyl)acetamide (CAS 333745-03-2)
- 2-Methyl-1,2,3,4-tetrahydroisoquinolin-3-one (CAS 6798-05-6)
- 1-((4-Methoxyphenyl)sulfonyl)-3-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 2227205-54-9)
- 2-Amino-6-nitrobenzonitrile (CAS 63365-23-1)
- Peptide 439 (CAS CATO-CPTD788439)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com