8-Methoxy-2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-one CAS 365242-46-2
| CAS No. | 365242-46-2 |
| Molecular Formula | C13H9F3O3S |
| Molecular Weight | 302.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Methoxy-2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-one (CAS 365242-46-2), molecular formula C13H9F3O3S and molecular weight 302.27 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 8-Methoxy-2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-one (C13H9F3O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 302.27 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C13H9F3O3S |
| Molecular Weight | 302.27 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; Hygroscopic; reseal immediately after opening; 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.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 7-Methoxy-2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-one (CAS 381700-17-0)
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Recommended Standards
- Ethyl 5-(3-triflluoromethylphenyl)-1,3,4-thiadiazole-2-carboxylate (CAS 1986908-21-7)
- 4-Methyl-2-((3-(trifluoromethyl)phenyl)amino)thiazole-5-carboxylic acid (CAS 928003-03-6)
- Ethyl 5-(4-(trifluoromethyl)phenyl)-1,2,4-thiadiazole-3-carboxylate (CAS 851225-36-0)
- 3-((3-(Trifluoromethyl)benzyl)oxy)thiophene-2-carboxylic acid (CAS 339009-59-5)
- N-(2,6-Diethylphenyl)-4,6-dihydro-3-[[4-(4-methyl-1-piperazinyl)-benzoyl]amino]pyrrolo[3,4-c]pyrazole-5(1H)-carboxamide (CAS 398493-79-3)
- 2-Chloro-N-(2-(4-methylpiperazin-1-yl)ethyl)aniline (CAS 1225766-24-4)
- 1-Methyl-imidazo[1,5-a]pyridine (CAS 6558-62-9)
- 2-(4-Iodo-6-methylpyridin-2-yl)acetic acid (CAS 1393552-16-3)
- 4-(2-(2-Ethyl-1H-pyrrol-1-yl)ethyl)morpholine (CAS 499200-71-4)
- (2S,4R)-4-(4-Bromobenzyl)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 959576-28-4)
- 2-(2-((N-Ethylacetamido)methyl)pyrrolidin-1-yl)acetic acid (CAS 1353943-88-0)
- (1-Methylcycloheptyl)amine hydrochloride (CAS 98486-54-5)
- 2-Methyl-4-[4-(trifluoromethyl)phenyl]thiomorpholine-3,5-dione (CAS 344266-32-6)
- Tetrapeptide-3 (CAS 827306-97-8)
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