4-(4-Chlorophenylsulfonyl)-5,8-difluoro-2H-chromene CAS 944950-71-4
| CAS No. | 944950-71-4 |
| Molecular Formula | C15H9ClF2O3S |
| Molecular Weight | 342.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(4-Chlorophenylsulfonyl)-5,8-difluoro-2H-chromene 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.
CATO supplies 4-(4-Chlorophenylsulfonyl)-5,8-difluoro-2H-chromene (CAS 944950-71-4), a certified reference material (molecular formula C15H9ClF2O3S, MW 342.74 g/mol) for analytical method development and quality control.
Structurally, 4-(4-Chlorophenylsulfonyl)-5,8-difluoro-2H-chromene (C15H9ClF2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 342.74 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H9ClF2O3S |
| Molecular Weight | 342.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorophenylsulfonyl Standards
- 2-(1-(4-Chlorophenylsulfonyl)vinyl)-1,4-difluorobenzene (CAS 471905-61-0)
- 2-((4-Chlorophenylsulfonyl)methyl)-1,4-difluorobenzene (CAS 470716-51-9)
- 4-(4-Chlorophenylsulfonyl)-4-(2,5-difluorophenyl)cyclohexanone (CAS 471903-20-5)
- 2-(4-(4-Chlorophenylsulfonyl)-4-(2,5-difluorophenyl)cyclohexylidene)acetonitrile (CAS 656810-84-3)
- 2-(4-Chlorophenylsulfonyl)thioacetamide (CAS 59865-87-1)
- N-(4-Chlorophenylsulfonyl)glycine (CAS 13029-72-6)
Recommended Standards
- 4-(2-Chloro-5-nitrophenyl)-1,4-dihydro-[1,3,5]triazino[1,2-a]benzimidazol-2-amine (CAS 774560-40-6)
- 6-Chloro-9-[2,3-O-(1-methylethylidene)-beta-D-ribofuranosyl]-9H-purine (CAS 39824-26-5)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1S)-1-phenylethyl]acetamide (CAS 955975-71-0)
- Ethyl 7-(4-chlorophenyl)-6-cyano-5-oxo-3,5-dihydro[1,2,4]triazolo[1,5-a]pyridine-8-carboxylate (CAS 478261-99-3)
- 4-Bromo-5-chloro-3-(chloromethyl)-2-(difluoromethyl)pyridine (CAS 1804458-53-4)
- 4-Fluoro-2-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)benzonitrile (CAS 1604036-96-5)
- 2-Chloro-N-[2-chloro-5-(piperidine-1-sulfonyl)phenyl]acetamide (CAS 379255-33-1)
- Furan-2-yl(thiophen-2-yl)methanol (CAS 77806-74-7)
- N-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(((4-chlorophenyl)sulfonamido)oxy)acetamide (CAS 306977-19-5)
- N,N-Dibutyl-7-nitro-4-benzofurazanamine (CAS 74400-49-0)
- Delgocitinib impurity 1 (CAS CATO-C4X-33081)
- 2-(2-Chlorophenyl)piperazine dihydrochloride (CAS 65709-26-4)
- 6-(3-chlorophenyl)morpholin-3-one (CAS 167848-09-1)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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