7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 3-(trifluoromethyl)benzoate CAS 343373-77-3
| CAS No. | 343373-77-3 |
| Molecular Formula | C15H11F3O4S2 |
| Molecular Weight | 376.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 3-(trifluoromethyl)benzoate 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.
7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 3-(trifluoromethyl)benzoate (CAS 343373-77-3) is a high-purity analytical reference standard with the molecular formula C15H11F3O4S2 and a molecular weight of 376.37 g/mol.
The molecular framework of 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 3-(trifluoromethyl)benzoate (C15H11F3O4S2) is characterized by a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C15H11F3O4S2 |
| Molecular Weight | 376.37 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 2 |
Related Dioxido Standards
- 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl 2,4-dichlorobenzoate (CAS 343373-81-9)
- (4,4-Dioxido-1-(p-tolyl)-1H-pyrido[2,3-e][1,3,4]thiadiazin-3-yl)(pyrrolidin-1-yl)methanone (CAS 1357942-60-9)
- (Z)-5-((5,5-dioxido-3-phenyltetrahydrothieno[3,4-d]thiazol-2(3H)-ylidene)amino)-5-oxopentanoic acid (CAS 850800-74-7)
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 354786-10-0)
- N-(5,5-Dioxido-2-phenyl-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2-phenylacetamide (CAS 681266-13-7)
- N-(1,1-Dioxido-1,2-benzisothiazol-3-yl)-4-methoxybenzenesulfonohydrazide (CAS 351066-12-1)
- 328559-44-0 2-[(2E)-1-(1,1-Dioxido-1,2-benzothiazol-3-yl)-2-(4-methoxybenzylidene)hydrazinyl]ethanol MFCD01821800 (CAS 328559-44-0)
- 2-(1,1-Dioxido-2-phenyl-6-(p-tolyl)-4H-thiopyran-4-ylidene)malononitrile (CAS 135215-38-2)
Recommended Standards
- 5-(Thiophen-2-ylsulfonyl)-8-(trifluoromethyl)-1,3,4,5-tetrahydro-2H-benzo[b][1,4]diazepin-2-one (CAS 866138-35-4)
- N-Nitroso Nafamostat impurity 120 (CAS CATO-C4X-1332120)
- 4-(Tert-butyl)phenyl 2-(2-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)acetate (CAS 672951-00-7)
- N-Nitroso Nafamostat impurity 92 (CAS CATO-C4X-133292)
- 4-(Benzylamino)-5-bromo-2-methylpyridazin-3(2H)-one (CAS 1823989-45-2)
- 3-[(2-aminophenyl)methyl]imidazolidine-2,4-dione (CAS 1016683-39-8)
- Ethyl 2-(4-methylbenzamido)-5-phenylthiophene-3-carboxylate (CAS 307536-23-8)
- 5-(bromomethyl)-2-(trifluoromethyl)pyridine (CAS 108274-33-5)
- 6-(2-Chloropropanoyl)benzo[d]oxazol-2(3H)-one (CAS 866948-71-2)
- 2-bromo-1-(5-bromopyrazin-2-yl)ethan-1-one (CAS 1351334-94-5)
- 5-(Thiophen-3-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1339442-62-4)
- Isopimpinellin (CAS 482-27-9)
- Allyl dimethyl sulfone (CAS 16215-14-8)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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