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Lab Chemicals
Biological Stains and Dyes
CRYSTAL VIOLET
CRYSTAL VIOLET AR
C.I.No.42555 (Confirms USP Specification) Crystal Violet is a component of Gram staining that allows one to recognize the difference between gram-positive and gram-negative bacteria with differential staining.
Basic Violet 3, Gentian Violet, Hexamethylpararosaniline chloride, Methyl Violet 10B
Article No.
03049
Grade
AR
Purity
96%
CAS No.
548-62-9
Molecular Formula
C
2
5
H
3
0
CIN
3
Molecular Weight
407.99
H.S. Code
3204.9000
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
Dark green powder
Odour
Slight characteristic odor
Melting point/ Freezing point [°C]
173 °C
Solubility in water [% weight]
Soluble in water
Packings
25 g
(00025)
100 g
(00100)
Specifications
Appearance
Dark green powder
Assay
96 – 100.5%
Identification
To pass A, B & C tests
Water (H2O)
Max 7.5%
Residue on ignition
Max 1.5%
Alcohol insoluble matter
Max 1%
Arsenic (As)
Max 0.001%
Lead (Pb)
Max 0.003%
Zinc (Zn)
Passes test
Chromatographic purity (by HPLC)
Passes test
Sensitivity as an indicator
Passes test
UV absorbance Ratio
0.98 - 1.90
Safety Information and Hazard Symbols
Symbol: GHS05, GHS07, GHS08, GHS09
Signal Word: Danger
UN No.: 3077
IMCO Class No.: 9
Packing Group: III
Hazardous Statement: H302-H318-H351-H410
Precaution Statement: P273-P280-P305 + P351 + P338-P501
Revision Date :
28-Feb-2019