Evans Blue
CAS: 314-13-6
Category: Azo dye
| Purity | Reagent Grade ≥85% dye content, USP Reference Standard, Technical Grade ≥75% |
| Molecular Formula | C34H24N6Na4O14S4 |
| Molecular Weight | 960.81 |
| Appearance | A blue to greenish-blue powder |
| Packaging | 10 g / 50 g / 100 g – amber glass bottle with PTFE liner; 500 g – HDPE bottle; 1 kg – foil-lined drum |
| Testing Indicators | Appearance — Visual inspection; Identification — UV (610 nm); Purity — HPLC; Dye content — Spectrophotometry; Heavy metals — ICP-MS; Chloride — Turbidimetry; Sulfate — Barium precipitation; Microbial limits — Filtration; Water-insoluble matter — Gravimetry. |
| Storage Notes | Keep in original light-proof container, 15-25 °C, <60 % RH, segregated from strong oxidants, acids, bases; avoid mechanical shock. |
| Lead Time | Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.demeichem.com/config/helpers.php on line 28 days |
High-purity dye intermediate for tracer/analytical reagent manufacture (vascular-permeability, albumin-binding assays)