(E)-4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(2-(4-methoxybenzylidene)hydrazinyl)pyrido[2,3-b]pyrazin-3(4H)-one CAS 338412-03-6
| CAS No. | 338412-03-6 |
| Molecular Formula | C23H19ClF3N7O2 |
| Molecular Weight | 517.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (E)-4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(2-(4-methoxybenzylidene)hydrazinyl)pyrido[2,3-b]pyrazin-3(4H)-one (CAS 338412-03-6), a certified reference material (molecular formula C23H19ClF3N7O2, MW 517.89 g/mol) for analytical method development and quality control.
Based on its molecular formula C23H19ClF3N7O2, (E)-4-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2-(2-(4-methoxybenzylidene)hydrazinyl)pyrido[2,3-b]pyrazin-3(4H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 517.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H19ClF3N7O2 |
| Molecular Weight | 517.89 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 7 |
Related E Standards
- 5-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methyl)-N-{[(4-nitrophenyl)carbamothioyl]amino}-4,5-dihydro-1,2-oxazole-3-carboxamide (CAS 338399-31-8)
- 2-Chloro-4-methanesulfonyl-N-{4-[3-(trifluoromethyl)benzenesulfonyl]phenyl}benzamide (CAS 339105-03-2)
- 2-((5-Chloro-2-((2-methoxy-4-(4-methylpiperazin-1-yl)phenyl)amino)pyrimidin-4-yl)amino)-N-methylbenzenesulfonamide (CAS 761438-38-4)
- 2-[3-(S)-[3-(2-(7-Chloro-2-quinolinyl)ethenyl)phenyl]-3-hydroxypropyl]phenyl-2-(1’-hydroxy-2’-methoxymethyl)propanol (Mixture of Diastereomers) (CAS 184764-20-3)
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- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-3-[(1Z)-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}methyl]-1H-indole (CAS 338409-94-2)
- 4-Chloro-N-[(N'-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperidine-4-carbonyl}hydrazinecarbonyl)methyl]benzamide (CAS 338397-24-3)
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Recommended Standards
- (4-Hydroxymidazolam)-β-D-glucuronide (CAS 81256-82-8)
- 2-((3-Bromobenzyl)thio)-3-(4-chlorophenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 618432-12-5)
- (R)-2-(4-(2-Amino-6-(1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)phenyl)acetic acid (CAS 1956435-42-9)
- 1'-Hydroxymidazolam β-D-Glucuronide (CAS 81256-81-7)
- methyl 2-formylfuran-3-carboxylate (CAS 19076-60-9)
- N-(7-(2-phenylacetyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide (CAS 886493-88-5)
- Trinexapac (free acid) (CAS 143294-89-7)
- Dimethyl (S)-(2-methylaziridin-1-yl)phosphonate (CAS 1800100-62-2)
- 2-(2,6-Difluorophenyl)-2-(pyrrolidin-1-yl)acetic acid (CAS 1218444-40-6)
- 5-Benzyl-1,3,4-oxadiazol-2-amine (CAS 31803-00-6)
- N-(1-Pyrenyl)iodoacetamide (CAS 76936-87-3)
- 1,5-Diphenylpent-4-en-1-one (CAS 4746-09-2)
- N-(3,4-Dioxo-1-phenyl-7-(pyridin-2-yloxy)heptan-2-yl)-2-(5-formamido-6-oxo-2-phenylpyrimidin-1(6H)-yl)acetamide (CAS 204460-24-2)
- Glucagon Monohydrochloride (CAS 28270-04-4)
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