Description
Coumarin VIS-438 Diethylamino Benzimidazol is a coumarin dye with the empirical formula C₂₀H₁₉N₃O₂, CAS number 27425-55-4 and a molar mass of 333,39 g/mol. Measured in methanol, the absorption maximum is 438 nm, placing the chromophore firmly in the visible range for spectroscopic and dye applications. It is listed under EG nr. 248-451-4 and Identity and optical data from manufacturer Carl ROTH support reproducible selection of this diethylamino benzimidazol coumarin in research workflows. The defined molar mass and absorption maximum aid calibration, spectral comparison and method development involving coumarin-type dyes. quantity is practical for screening, small-scale synthesis follow-up and reference stock preparation. Clear CAS, EG and formula labelling simplifies inventory control and documentation in analytical, materials and photochemistry laboratories working with visible-absorbing organic dyes.
Key features
- CAS number: 27425-55-4
- Pack sizes: 1 g, 5 g, 10 g
- EG nr.: 248-451-4
- Empirical formula: C₂₀H₁₉N₃O₂
- Molar mass: 333,39 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)