(E)-1-Benzyl-4-((5,6-dimethoxy-1-oxo-1,3-dihydro-2H-inden-2-ylidene)methyl)pyridin-1-ium bromide CAS 178551-26-3
| CAS No. | 178551-26-3 |
| Molecular Formula | C24H22NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (E)-1-Benzyl-4-((5,6-dimethoxy-1-oxo-1,3-dihydro-2H-inden-2-ylidene)methyl)pyridin-1-ium bromide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(E)-1-Benzyl-4-((5,6-dimethoxy-1-oxo-1,3-dihydro-2H-inden-2-ylidene)methyl)pyridin-1-ium bromide (CAS 178551-26-3) is a high-purity analytical reference standard with the molecular formula C24H22NO3Br and a molecular weight of 452.35 g/mol.
Structurally, (E)-1-Benzyl-4-((5,6-dimethoxy-1-oxo-1,3-dihydro-2H-inden-2-ylidene)methyl)pyridin-1-ium bromide (C24H22NO3Br) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 452.35 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C24H22NO3 Br |
| Molecular Weight | 452.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl 6-(thiophen-3-yl)pyridine-2-carboxylate (CAS 1820608-45-4)
- 3-Methoxybenz[a]anthracen-12-ol 12-Acetate (CAS 66240-12-8)
- 2-{2-[4-(tert-Pentyl)phenoxy]ethyl}piperidinehydrochloride (CAS 1220037-71-7)
- (1S,6R)-6-aminocyclohex-3-ene-1-carboxylic acid (CAS 54162-90-2)
- Butyl 4-(2-aminoacetamido)benzoate hydrochloride (CAS 1584650-94-1)
- Racemic-(1R,5S,6S)-5-fluoro-3-azabicyclo[4.1.0]heptane (CAS 1445951-41-6)
- tert-Butyl 4-(3-aminopyrazin-2-yl)-2-fluorobenzoate (CAS 1715031-88-1)
- 7-Methoxy-2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phthalazin-1(2H)-one (CAS 2761059-14-5)
- (2R,3R)-2-Amino-3-(4-methoxy-2,6-dimethylphenyl)-4-methylpentanoic acid hydrochloride (CAS 1263376-98-2)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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