Methyl Violet 2B Powder C.I. 42535


Methyl Violet 2B is a green crystalline powder and can be used as a pH indicator. Also known as Basic Violet 1

  • pH Indicator
  • Biological Dye

Molecular Formula: C24H26N3Cl
Molecular Weight: 393.96
Melting Point: 137°C
Lamda Max: 584 nm (in 50% Ethanol)
Visual Transition Interval: pH 0.1 (yellow) to pH 2.7 (pink)


Hazard Phrases: Harmful if swallowed. Suspected of causing cancer . Very toxic to aquatic life.

Prec Phrases: Avoid release to the environment. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Collect spillage.


Cas No: 8004-87-3

HS CODE: 32129000


Following the UK’s departure from the EU on 1 January 2021, all European shipments are sent on a DAP Basis (Delivered at Place).

This means that the buyer will be liable for import VAT at their prevailing national rate and for orders over 150€ (including carriage) import duties will become chargeable at your prevailing national rate.

The Duty is ascertained by your national customs authority based on the HS Code of each product. The HS Code is shown in the “European Shipment” section of each product page.


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Additional information

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5gm, 10gm, 25gm, 100gm