Methyl Blue C.I. 42780 – 25 g

Methyl Blue (Colour Index C.I. 42780) is supplied in a 25 g pack for educational laboratory use. This synthetic dye is widely used in biology and chemistry teaching for staining and visualisation, particularly in microscopy and demonstration experiments where strong colour contrast is required.

Identified by CAS Number: 28983‑56‑4 and with no UN number, methyl blue is not classified as hazardous for transport when handled appropriately. It is supplied as a dark blue powder that dissolves readily in water, producing intensely coloured solutions suitable for repeated classroom use.

The larger 25 g pack size is ideal for departments carrying out regular staining work or supporting multiple classes, offering excellent value while ensuring consistent results.

Key Features

• Methyl Blue dye (C.I. 42780)
• 25 g pack – suitable for repeated educational use
• CAS No: 28983‑56‑4
• No UN number – non‑hazardous for standard handling
• Water‑soluble synthetic dye
• Produces strong, vivid blue solutions
• Clearly labelled for safe storage and handling
• Suitable for school biology and chemistry laboratories

Ideal for School Science Lessons

Methyl Blue is particularly well suited to KS3, GCSE, and A‑Level science lessons, especially when studying microscopy, staining techniques, and the visualisation of biological materials. All experimental work should be conducted under appropriate supervision and in line with school laboratory guidance.

• Supporting biological staining techniques
• Enhancing visibility in microscopy studies
• Visualising biological samples
• Linking chemistry with biological applications
• Developing practical skills in solution preparation and safe handling of dyes

Reliable, intensely coloured, and curriculum‑relevant, Methyl Blue C.I. 42780 – 25 g is a valuable teaching reagent that supports effective visual demonstrations while reinforcing good laboratory practice and safe handling procedures.