2-[(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl]-1-methylpyridin-1-ium iodide CAS 139557-65-6
| CAS No. | 139557-65-6 |
| Molecular Formula | C18H21N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-[(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl]-1-methylpyridin-1-ium iodide (C18H21N2I) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-[(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl]-1-methylpyridin-1-ium iodide (CAS 139557-65-6), molecular formula C18H21N2I and molecular weight 392.28 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-[(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl]-1-methylpyridin-1-ium iodide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H21N2 I |
| Molecular Weight | 392.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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