(E)-3-(2,4-Dimethoxybenzylidene)-3,4,5,6-tetrahydro-2,3'-bipyridine dihydrochloride CAS 156223-05-1
| CAS No. | 156223-05-1 |
| Molecular Formula | C19H20N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-3-(2,4-Dimethoxybenzylidene)-3,4,5,6-tetrahydro-2,3'-bipyridine dihydrochloride (C19H20N2O2HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies (E)-3-(2,4-Dimethoxybenzylidene)-3,4,5,6-tetrahydro-2,3'-bipyridine dihydrochloride (CAS 156223-05-1), a certified reference material (molecular formula C19H20N2O2HCl, MW 344.84 g/mol) for analytical method development and quality control.
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.
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 | C19H20N2O2 2*HCl |
| Molecular Weight | 344.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
- 3-(3,4-Dimethoxybenzylidene)-5-(3,4-dimethoxyphenyl)furan-2(3H)-one (CAS 102474-18-0)
- 3-(3,4-Dimethoxybenzylidene)dihydrofuran-2(3H)-one (CAS 102669-37-4)
- 4-(3,4-Dimethoxybenzylidene)-3-(3,4-dimethoxyphenyl)-1,5-bis(2-hydroxy-4,6-dimethoxyphenyl)pent-2-ene-1,5-dione (CAS 10496-67-0)
- (E)-5-(3,4-Dimethoxybenzylidene)-2-mercaptothiazol-4(5H)-one (CAS 1055978-68-1)
- (E)-4-(2,5-dimethoxybenzylidene)-2-phenyloxazol-5(4H)-one (CAS 109876-87-1)
- 3-(4-(3,4-Dimethoxybenzylidene)-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-6-iodo-2-methylquinazolin-4(3H)-one (CAS 114496-25-2)
- (5E)-5-(2,5-Dimethoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (CAS 127378-17-0)
- 4-((3,4-Dimethoxybenzylidene)amino)benzoic acid (CAS 13160-78-6)
Recommended Standards
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- Ganirelix 1-4 peptide (CAS 208599-57-9)
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