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Crystal violet (C.I. 42555), 25 g

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: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
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 harmful if swallowed, causes serious eye damage, suspected of causing cancer, 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/eye 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.
Methyl violet 10B, Gentian violet, Hexamethylene pararosaniline chloride
Empirical formula C25H30ClN3
Molar mass (M) 407,99 g/mol
Density (D) 1,19 g/cm³
Boiling point (bp) 631,9 °C
Flash point (flp) 405,1 °C
Melting point (mp) 250 °C
CAS No. 548-62-9
EG-Nr. 208-953-6
UN-Nr. 3077

Indicator pH 0.0-2.0
Dissolve 0.1 g in 100 ml of ethanol (70 %)

Crystal violet, also called gentian violet, is soluble in water and alcohol and is used for multiple histological stains, e.g. Gram staining.
Product details

€36.05/Pack Qty. 

excl. VAT. | 25 g per Pack Qty.

Art. No. T123.1

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from 6 Pack Qty. €34.25/Pack Qty.
from 24 Pack Qty. €32.44/Pack Qty.

Product details

Crystal violet (C.I. 42555) p.a.

Crystal violet, also called gentian violet, is soluble in water and alcohol and is used for multiple histological stains, e.g. Gram staining.

Technical Information
Colour conversion yellow - blue-violet 
Transition range pH 0,0 - 2,0 
Crystal violet (C.I. 42555)
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Art. No. Pack Qty. Pack. Price Quantity
T123.1 25 g glass


T123.2 5 g glass


T123.3 100 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

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The following analysis certificates have been found:

Type analysis

pH-transition range0.0 (yellow)-2.0 (blue violet)
Assay (spectrophotometric)≥90.0 %
Loss on drying (110 °C)≤7.5 %