Description
4-Dyestuff Test Solution, hydrophilic, Biostep, Density (D) ~1 g/cm³, UN-Nr. 1219
The multicolor test solution is ideal for practical exercises, training sessions, or educational purposes to vividly demonstrate the properties of mobile and stationary phases.
Applications:
- Practical exercises
- Training sessions
- Demonstrations of chromatographic principles
To optimize conditions for TLC analysis, it can be helpful to add a test mixture separately to each separation process.
It comprises:
- Fluorescein: Emits an intense green fluorescence under longwave UV light.
- Methyl Red: A pH indicator that changes from red to yellow in alkaline conditions.
- Methylene Blue: A strikingly vivid blue dye.
- Malachite Green: Provides a vibrant green coloration.
The dyes are dissolved in isopropanol, making this solution an excellent tool for demonstrating and optimizing chromatographic separations.
Compliance & Safety Information

Danger
Hazard Statements (H-Phrases)
H225
Highly flammable liquid and vapour
H302
Harmful if swallowed
H317
May cause an allergic skin reaction
H319
Causes serious eye irritation
H336
May cause drowsiness or dizziness
Precautionary Statements (P-Phrases)
P210
Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P261
P261 – No description available
P280
Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312
P312 – No description available

