Ethyl 6,6''-bis(bromomethyl)-[2,2':6',2''-terpyridine]-4'-carboxylate CAS 372520-85-9
| CAS No. | 372520-85-9 |
| Molecular Formula | C20H17Br2N3O2 |
| Molecular Weight | 491.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 6,6''-bis(bromomethyl)-[2,2':6',2''-terpyridine]-4'-carboxylate.
Ethyl 6,6''-bis(bromomethyl)-[2,2':6',2''-terpyridine]-4'-carboxylate (CAS 372520-85-9), molecular formula C20H17Br2N3O2 and molecular weight 491.18 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 6,6''-bis(bromomethyl)-[2,2':6',2''-terpyridine]-4'-carboxylate (C20H17Br2N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Ethyl 6,6''-bis(bromomethyl)-[2,2':6',2''-terpyridine]-4'-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C20H17Br2N3O2 |
| Molecular Weight | 491.18 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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