Zinquin Ethyl Ester CAS 151606-29-0
| CAS No. | 151606-29-0 |
| Molecular Formula | C19H18N2O5S |
| Molecular Weight | 386.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Zinquin Ethyl Ester is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Zinquin Ethyl Ester (CAS 151606-29-0), a certified reference material (molecular formula C19H18N2O5S, MW 386.42 g/mol) for analytical method development and quality control.
Zinquin Ethyl Ester (C19H18N2O5S) contains a flavonoid core, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O5S |
| Molecular Weight | 386.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Zinquin Standards
Recommended Standards
- 1-(3-Fluorophenyl)-N-(1-(3-methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)-5-oxopyrrolidine-3-carboxamide (CAS 1396680-82-2)
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- Fmoc-S-carbamoyl-L-cysteine (CAS 1354488-29-1)
- tert-Butyl 4-(5-(4-fluorobenzoyl)pyrimidin-2-yl)piperazine-1-carboxylate (CAS 1703794-73-3)
- 3-Phenylpentane-1,3,5-tricarboxylic acid (CAS 17724-90-2)
- 3-Nitro-4-(phenylamino)benzonitrile (CAS 16588-23-1)
- 2-Phenylbenzo[d]oxazole-6-carbonitrile (CAS 1279208-39-7)
- 1-(2-Fluorobenzyl)-5-methyl-3-nitro-1h-pyrazole (CAS 957354-34-6)
- BDY TR-X, SE (CAS 197306-80-2)
- 5-Bromo-4-(2-fluorophenyl)-1H-imidazole-2-carbaldehyde (CAS 1781679-88-6)
- rel-(1R,3r,5S)-1,5-dideuterio-6-oxabicyclo[3.1.0]hexan-3-ol (CAS 201535-42-4)
- 1-Ethyl-5-methyl-2-(4-nitrophenyl)-1H-pyrazol-3(2H)-one (CAS 88585-26-6)
- 1-(2,3,4-Trimethoxyphenyl)cyclopropan-1-ol (CAS 1251356-88-3)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
Why CATO?
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