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Documentos Principais

219215

Sigma-Aldrich

Leucocrystal Violet

Sinônimo(s):

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

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5 G
R$ 441,00
25 G
R$ 983,00

R$ 441,00


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5 G
R$ 441,00
25 G
R$ 983,00

About This Item

Fórmula linear:
CH[C6H4N(CH3)2]3
Número CAS:
Peso molecular:
373.53
Número CE:
Número MDL:
Código UNSPSC:
12171500
ID de substância PubChem:
NACRES:
NA.47

R$ 441,00


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Formulário

powder

Nível de qualidade

técnica(s)

microbe id | staining: suitable

pf

175-177 °C (lit.)

λmax

260 nm

ε (coeficiente de extinção)

≥700 at 257-263 nm

aplicação(ões)

diagnostic assay manufacturing
hematology
histology

temperatura de armazenamento

room temp

cadeia de caracteres SMILES

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

chave InChI

OAZWDJGLIYNYMU-UHFFFAOYSA-N

Aplicação

Leucocrystal Violet has been used to identify histamine-producing lactobacilli in cheese.[1]

Ações bioquímicas/fisiológicas

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.[2][3]

Atenção

Photo-ionization can cause color variations

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Nº do produto
Descrição
Preços

Pictogramas

Environment

Palavra indicadora

Warning

Frases de perigo

Declarações de precaução

Classificações de perigo

Aquatic Acute 1 - Aquatic Chronic 1

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves


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Slide 1 of 4

1 of 4

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)
Use of leuco crystal violet to enhance shoe prints in blood.
Bodziak WJ
Forensic Science International, 82, 45-52 (1996)
Craig A. Coppock
Contrast: An Investigator's Basic Reference Guide to Fingerprint Identification Concepts (2007)
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
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

Questions

1–2 of 2 Questions  
  1. Is 219215-5G the same powder that is used in the urinalysis dip sticks?

    1 answer
    1. Leucocrystal violet is the completely reduced form of crystal violet. The dye powder appears white to gray to lavender, and solutions are expected to be colorless. In addition to identifying lactobacilli in cheese, Leucocrystal Violet (LCV) is a cationic triarylmethane dye that has an affinity for both cellulosic and proteinaceous materials. It reacts with the hemoglobin in blood and turns the blood impression to a purple/violet color. Consequently, the dye is widely used to stain blood residue on both porous and non-porous materials. There is also mention of Leucocrystal Violet being used as an indicator on a urinalysis test strip, potentially to detect the presence of blood or protein. However, the quality level for Leucocrystal Violet is 200 on a scale of 100 to 600, and it is only advertised as suitable for Research Use Only. Urinalysis test strips sold for human use are classified as medical devices and are stated to be suitable for In Vitro Diagnostic Use. As such, product 219215 is not suitability tested to ensure the dye is suitble for use in the manufacture of urinalysis test strips.

      Helpful?

  2. What is the purity of lot/batch #:MKBW1177V

    1 answer
    1. The purity is not determined for this product, only carbon and nitrogen are quantitated.

      Helpful?

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