| CAS No. | 475157-91-6 |
| Molecular Formula | C19H18N3O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 1-(4-Methoxyphenyl)-3-(4-nitrophenyl)-1,5,6,7-tetrahydroimidazo[2,1-b][1,3]thiazin-4-ium bromide is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-(4-Methoxyphenyl)-3-(4-nitrophenyl)-1,5,6,7-tetrahydroimidazo[2,1-b][1,3]thiazin-4-ium bromide (CAS 475157-91-6), a certified reference material (molecular formula C19H18N3O3SBr, MW 448.33 g/mol) for analytical method development and quality control.
The molecular framework of 1-(4-Methoxyphenyl)-3-(4-nitrophenyl)-1,5,6,7-tetrahydroimidazo[2,1-b][1,3]thiazin-4-ium bromide (C19H18N3O3SBr) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 1-(4-Methoxyphenyl)-3-(4-nitrophenyl)-1,5,6,7-tetrahydroimidazo[2,1-b][1,3]thiazin-4-ium bromide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C19H18N3O3S Br |
| Molecular Weight | 448.33 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |