4-((2,6-Dichlorophenyl)amino)thiophene-3-carboxylic acid CAS 16562-98-4
| CAS No. | 16562-98-4 |
| Molecular Formula | C11H7Cl2NO2S |
| Molecular Weight | 288.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H7Cl2NO2S, 4-((2,6-Dichlorophenyl)amino)thiophene-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 288.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 4-((2,6-Dichlorophenyl)amino)thiophene-3-carboxylic acid (CAS 16562-98-4), a certified reference material (molecular formula C11H7Cl2NO2S, MW 288.15 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-((2,6-Dichlorophenyl)amino)thiophene-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H7Cl2NO2S |
| Molecular Weight | 288.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
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- Methyl 2-(3,5-dichlorophenyl)thiazole-4-carboxylate (CAS 1548643-66-8)
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- 2-[2-(2,4-dichlorophenyl)-1,3-thiazol-4-yl]acetic acid (CAS 17969-29-8)
- N-(2,4-Dichlorophenyl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (CAS 183300-50-7)
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Recommended Standards
- 9-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydrobenzo[b]oxepin-5(2H)-one (CAS 1655495-96-7)
- 6-Methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-indazole (CAS 1647115-89-6)
- N-[2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-pyridyl]prop-2-enamide (CAS 1629584-92-4)
- 4-Chloro-6-phenylpyridine-3-sulfonyl chloride (CAS 1805243-73-5)
- (4-Hydroxy-butyl)-methyl-carbamic acid benzyl ester (CAS 116644-44-1)
- 3-Quinolinecarbonitrile, 1,4-dihydro-6-methoxy-7-[3-(4-morpholinyl)propoxy]-4-oxo- (CAS 1369509-89-6)
- Netropsin dihydrochloride (CAS 18133-22-7)
- Boc-NH-PEG3-NHS ester (CAS 2250216-93-2)
- 4-(((2-Fluorophenyl)sulfonyl)methyl)-1-methyl-1h-pyrazole (CAS 1484395-98-3)
- 2,6-Difluoro-4-hydrazinobenzonitrile (CAS 1211514-57-6)
- 2-(5-Bromothiophen-2-yl)acetaldehyde (CAS 722536-02-9)
- 2-(2-Methyl-4-oxoquinolin-1(4H)-yl)acetic acid (CAS 946666-39-3)
- (R)-3-(4-(2-(4-((S)-3-Chloro-2-hydroxypropoxy)phenyl)propan-2-yl)phenoxy)propane-1,2-diol (CAS 1203490-23-6)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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