219215
Leucocrystal Violet
Synonym(s):
4,4′,4′′-Methylidynetris(N,N-dimethylaniline), Leuco Crystal Violet
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About This Item
Linear Formula:
CH[C6H4N(CH3)2]3
CAS Number:
Molecular Weight:
373.53
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
EC Number:
210-043-9
MDL number:
form
powder
Quality Segment
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
SMILES string
CN(C)c1ccc(cc1)C(c2ccc(cc2)N(C)C)c3ccc(cc3)N(C)C
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
InChI key
OAZWDJGLIYNYMU-UHFFFAOYSA-N
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
signalword
Warning
hcodes
pcodes
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
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