3-Chloro-4-(diphenylamino)-2H-thieno[2,3-h]chromen-2-one CAS 90236-95-6
| CAS No. | 90236-95-6 |
| Molecular Formula | C23H14ClNO2S |
| Molecular Weight | 403.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Chloro-4-(diphenylamino)-2H-thieno[2,3-h]chromen-2-one (CAS 90236-95-6), a certified reference material (molecular formula C23H14ClNO2S, MW 403.88 g/mol) for analytical method development and quality control.
3-Chloro-4-(diphenylamino)-2H-thieno[2,3-h]chromen-2-one (C23H14ClNO2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 3-Chloro-4-(diphenylamino)-2H-thieno[2,3-h]chromen-2-one 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 | C23H14ClNO2S |
| Molecular Weight | 403.88 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-N-(2-morpholino-5-(morpholinosulfonyl)phenyl)acetamide (CAS 721908-40-3)
- 3-(((6-Chloro-4H-benzo[d][1,3]dioxin-8-yl)methyl)thio)-5-(3-methoxyphenyl)-4-methyl-4H-1,2,4-triazole (CAS 869356-91-2)
- N-(5-Chloro-2-methoxyphenyl)-2-((1-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide (CAS 688336-08-5)
- N-(3-Chloro-4-methoxyphenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 618414-53-2)
- N-(3-Chloro-4-methoxyphenyl)-2-((4-ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 585553-73-7)
- 3-((4-Chloro-3-methylphenoxy)methyl)-4,5-di-p-tolyl-4H-1,2,4-triazole (CAS 141079-06-3)
- 1-(2-((2-Chloro-6-fluorobenzyl)thio)ethyl)-2-methyl-5-phenyl-1H-pyrrole-3-carboxylic acid (CAS 306936-24-3)
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Recommended Standards
- 5-(4-Chlorobenzoyl)-2-(phenylamino)-4-(1H-pyrrol-1-yl)thiophene-3-carbonitrile (CAS 338401-16-4)
- Ethyl 4-(chlorosulfonyl)-2-methyl-1,5-diphenyl-1H-pyrrole-3-carboxylate (CAS 306936-29-8)
- 2-(4-Chlorophenyl)-3-(4-methyl-2-phenyl-1,3-thiazole-5-carbonyl)cyclopropane-1,1-dicarbonitrile (CAS 478064-84-5)
- N-(4-chlorophenyl)-3,5-dimethyl-4-((phenylsulfonyl)methyl)-1H-pyrazole-1-carboxamide (CAS 321574-41-8)
- Trimethylphosphine oxide (CAS 676-96-0)
- Thiazolo[4,5-g]isoquinoline (CAS 193342-79-9)
- N-(Cyclopentylcarbonyl)-2-methylalanine (CAS 1220021-10-2)
- Phenyl 4-O-acetyl-2,6-di-O-benzoyl-1-thio-β-thio-β-D-galactopyranoside (CAS 152488-28-3)
- 2,4-Dibromo-5-(difluoromethoxy)phenylacetonitrile (CAS 1804936-48-8)
- 1-(2-Chlorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 60850-73-9)
- 4-(2-Iodoethyl)piperazine-1-carboxylic acid tert-butyl ester (CAS 1345012-35-2)
- 1-(Furan-2-carbonyl)-1,2,5,6-tetrahydropyridine-3-carboxylic acid (CAS 1373247-06-3)
- Methyl 2-amino-3-(dimethylamino)propanoate (CAS 736921-14-5)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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