8-Ethyl-9-methyl-10-(trifluoromethyl)-3,4-dihydro-1H-pyrido[3',2':4,5]thieno[3,2-e][1,4]diazepine-2,5-dione CAS 939894-34-5
| CAS No. | 939894-34-5 |
| Molecular Formula | C14H12F3N3O2S |
| Molecular Weight | 343.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
8-Ethyl-9-methyl-10-(trifluoromethyl)-3,4-dihydro-1H-pyrido[3',2':4,5]thieno[3,2-e][1,4]diazepine-2,5-dione (CAS 939894-34-5), molecular formula C14H12F3N3O2S and molecular weight 343.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, 8-Ethyl-9-methyl-10-(trifluoromethyl)-3,4-dihydro-1H-pyrido[3',2':4,5]thieno[3,2-e][1,4]diazepine-2,5-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 343.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C14H12F3N3O2S |
| Molecular Weight | 343.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5-Nitro-2-[(1-phenyl-1h-1,2,3,4-tetrazol-5-yl)sulfanyl]benzoic acid (CAS 309726-59-8)
- Ethyl 2-{[2-(pyridin-2-yl)-6-(trifluoromethyl)pyrimidin-4-yl]sulfanyl}acetate (CAS 338418-30-7)
- 4-[(1E)-{[3-(trifluoromethyl)phenyl]imino}methyl]phenyl methanesulfonate (CAS 331460-67-4)
- Ethyl 2-{[3-phenyl-6-(trifluoromethyl)-1,2,4-triazin-5-yl]sulfanyl}acetate (CAS 383148-42-3)
- Benzyl 1-((tert-butoxycarbonyl)amino)-5-azaspiro[2.5]Octane-5-carboxylate (CAS 2251054-14-3)
- Ethyl 3-(4-chlorobenzoyl)-5-(pyridin-2-yl)indolizine-1-carboxylate (CAS 252986-68-8)
- 5-Chloro-2,4-dimethylpyrimidine (CAS 75712-73-1)
- 2-(4-Fluorophenyl)pyridin-3-ol (CAS 478483-55-5)
- 2-[Bis(4-fluorophenyl)methoxy]-ethylazanium chloride (CAS 50376-82-4)
- Galantamine-d6 (CAS 1128109-00-1)
- 2-Methyl-2-(pyridin-4-yl)propanal (CAS 1535434-83-3)
- 1-(3-Isopropoxyphenyl)propan-2-ol (CAS 1198744-91-0)
- N-(3-methoxybenzyl)-2-(4-methoxyphenyl)ethan-1-amine hydrobromide (CAS 1609403-79-3)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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