Skip to Content
Merck
CN

219215

Leucocrystal Violet

Synonym(s):

4,4′,4′′-Methylidynetris(N,N-dimethylaniline), Leuco Crystal Violet

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
CH[C6H4N(CH3)2]3
CAS Number:
603-48-5
Molecular Weight:
373.53
NACRES:
NA.47
PubChem Substance ID:
24853114
UNSPSC Code:
12171500
EC Number:
210-043-9
MDL number:
MFCD00008314

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI key

OAZWDJGLIYNYMU-UHFFFAOYSA-N

InChI

1S/C25H31N3/c1-26(2)22-13-7-19(8-14-22)25(20-9-15-23(16-10-20)27(3)4)21-11-17-24(18-12-21)28(5)6/h7-18,25H,1-6H3

SMILES string

CN(C)c1ccc(cc1)C(c2ccc(cc2)N(C)C)c3ccc(cc3)N(C)C

form

powder

technique(s)

microbe id | staining: suitable

mp

175-177 °C (lit.)

λmax

260 nm

ε (extinction coefficient)

≥700 at 257-263 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

Related Categories

Application

Leucocrystal Violet has been used to identify histamine-producing lactobacilli in cheese.

Biochem/physiol Actions

Leucocrystal Violet (LCV) is a cationic triarylmethane dye. LCV is a reduced form of gentian violet (crystal violet) and thus, it is colorless. It has an affinity for both cellulosic and proteinaceous materials. LCV and hydrogen peroxide react with the hemoglobin in blood and turn the blood impression to purple/violet color. Therefore, the dye is widely used to stain blood residue on both porous and non-porous materials.

Disclaimer

Photo-ionization can cause color variations

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000236216
0000236216
MKBW1177V
MKBR8820V
MKBR8440V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

L G Rushing et al.
Journal of chromatography. B, Biomedical sciences and applications, 688(2), 325-330 (1997-01-24)
A sensitive analytical procedure for the determination of residues of leucomalachite green (LMG)-malachite green (MG) and leucogentian violet (LGV)-gentian violet (GV) in catfish or trout tissue is presented. Frozen (-20 degrees C) fish fillets were cut into small pieces and
D R Doerge et al.
Rapid communications in mass spectrometry : RCM, 10(12), 1479-1484 (1996-01-01)
Gentian violet (GV) is a triphenylmethane dye antiseptic with potential for illegal use in livestock production, especially aquaculture where the related malachite green has been widely used. This potential misuse has regulatory importance because of the observed rodent carcinogenicity of
Detection Method for Histamine-Producing, Dairy-Related
Bacteria using Diamine Oxidase and Leucocrystal Violet
SUMNER S S
Journal of Food Protection, 52, 105-108 (1989)
Craig A. Coppock
Contrast: An Investigator's Basic Reference Guide to Fingerprint Identification Concepts (2007)
Use of leuco crystal violet to enhance shoe prints in blood.
Bodziak WJ
Forensic Science International, 82, 45-52 (1996)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service