Ethyl 6,7-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate CAS 1279202-87-7
| CAS No. | 1279202-87-7 |
| Molecular Formula | C14H15NO4S |
| Molecular Weight | 293.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 293.34 g/mol gives Ethyl 6,7-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 6,7-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate (CAS 1279202-87-7), a certified reference material (molecular formula C14H15NO4S, MW 293.34 g/mol) for analytical method development and quality control.
Ethyl 6,7-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate (C14H15NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Ethyl 6,7-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate 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 | C14H15NO4S |
| Molecular Weight | 293.34 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 5,8-dimethoxy-4-thioxo-1,4-dihydroquinoline-3-carboxylate (CAS 1219162-42-1)
- [4-(3,4-Dimethoxy-phenyl)-2-methyl-thiazol-5-yl]-acetic acid (CAS 43204-94-0)
- 2-(2-Acetyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)acetic acid (CAS 101106-24-5)
- 4-(6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)-4-oxobutanoic acid (CAS 842955-83-3)
- benzyl 4,4-dimethoxy-3-oxopiperidine-1-carboxylate (CAS 2059938-03-1)
- Methyl 5,5-dimethoxy-7,9-dimethyl-2,3,4,5-tetrahydro-1H-benzo[b]azepine-1-carboxylate (CAS 1259393-31-1)
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Recommended Standards
- 8-Boc-2,2-dioxo-1,3-dioxa-2-thia-8-azaspiro[4.5]decane (CAS 1257300-52-9)
- N-(tert-Butyl)-2-(3-(4-fluorophenyl)-2-oxoimidazolidin-1-yl)acetamide (CAS 1286697-16-2)
- (2S,4R)-1-[(tert-butoxy)carbonyl]-4- 1252640-76-8 PB36398 methanesulfonylpyrrolidine-2-carboxylic acid (CAS 1252640-76-8)
- 2-((4-Methoxybenzyl)amino)pyridine-3-sulfonamide (CAS 1291842-36-8)
- 6-Bromo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine (CAS 959992-62-2)
- Methyl 2-amino-4-(2-ethyl-1h-imidazol-1-yl)butanoate (CAS 1343078-67-0)
- 2-(4-Phenyl-1,3-thiazol-2-yl)acetohydrazide (CAS 871547-65-8)
- Suprofen-d3 (CAS 126320-79-4)
- tert-Butyl (3,4-dihydroxyphenyl)carbamate (CAS 2228506-07-6)
- 1-(tert-Butyl) 2-methyl (2S,4R)-4-fluoro-5-oxopyrrolidine-1,2-dicarboxylate (CAS 1268729-75-4)
- 4-(1h-Pyrrolo[2,3-b]pyridin-3-yl)thiazol-2-amine (CAS 868387-60-4)
- (2-Iodo-4-methoxyphenyl)methanol (CAS 1379329-63-1)
- 4-Methoxycinnamylidene Acetaldehyde (CAS 27394-81-6)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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