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Malachite green oxalate (C.I. 42000), 100 g, glass

for microscopy
Icon_EVE-EUD Please consider that this product might be liable to some legal sanctions as for example to obtain an end user declaration or the prohibition of some applications. For details please do contact your counterpart in our sales department!
Examples of effect: Damage metals and burn body tissues; may cause serious eye damage. Safety: Avoid contact; wear safety spectacles and gloves. In the event of contact with eyes and skin, rinse with water.
Examples of effect: In smaller quantities, lead to immediate serious damage to health or death. Safety: Do not inhale, touch or swallow. Wear work safety equipment. Call a poison control centre or doctor immediately. Recovery position.
Examples of effect: Have an allergenic effect, carcinogenic, mutagenic, toxic to reproduction and cause developmental toxicity (reprotoxic) or damage to organs Safety: You must be well-informed before starting work with these substances; wear protective clothing and gloves, eye protection and mask or breathing protection.
Examples of effect: Are harmful to aquatic organisms, toxic or highly toxic, acute or with long-term effects. Safety: To be disposed of as hazardous waste only, do not allow into the environment under any circumstances.
i toxic if swallowed, causes serious eye damage, suspected of damaging the unborn child, very toxic to aquatic life with long lasting effects
P273 P280 P305+P351+P338 P308+P313
i avoid release to the environment, wear protective gloves/protective clothing/eye protection/face protection, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing, IF exposed or concerned: Get medical advice/attention
Pack Qty.
Basic green 4
Empirical formula C52H54N4O12
Molar mass (M) 927,02 g/mol
Melting point (mp) 159 °C
CAS No. 2437-29-8
EG-Nr. 219-441-7
UN-Nr. 2811

Indicator pH 0.0-2.0, for protein analysis
Dissolve 0.1 g in 100 ml of water

Water soluble triphenylmethane dye; in botany used for staining bacteria and fungal infected tissues and for detection of spores.
Product details

€44.65/Pack Qty. 

excl. VAT. | 100 g per Pack Qty.

Art. No. 5895.1

In stock
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Product details

Malachite green oxalate (C.I. 42000) for microscopy

Water soluble triphenylmethane dye; in botany used for staining bacteria and fungal infected tissues and for detection of spores.

Technical Information
Colour conversion yellow - green 
green - colourless 
Transition range pH 0,0 - 2,0 
11,6 - 14,0 
Malachite green oxalate (C.I. 42000)
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Art. No. Pack Qty. Pack. Price Quantity
5895.1 100 g glass


5895.2 25 g glass


5895.3 250 g glass


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Selected quantity:   0
  1. Subtotal:  0.00

Downloads / MSDS

General information

Indicators and Dyes

Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Type analysis

Dye content≥90.0 %
Absorption max. (in H2O)~614 nm
Suitability for microscopycomplies