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219215

Sigma-Aldrich

Leucocrystal Violet

Synonyme(s) :

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

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5 G
70,80 €
25 G
187,00 €

70,80 €

Disponible pour expédition le22 avril 2025Détails

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5 G
70,80 €
25 G
187,00 €

About This Item

Formule linéaire :
CH[C6H4N(CH3)2]3
Numéro CAS:
603-48-5
Poids moléculaire :
373.53
Numéro CE :
210-043-9
Numéro MDL:
MFCD00008314
Code UNSPSC :
12171500
ID de substance PubChem :
24853114
Nomenclature NACRES :
NA.47

70,80 €

Disponible pour expédition le22 avril 2025Détails

Devis pour commande en gros

Forme

powder

Niveau de qualité

200

Technique(s)

microbe id | staining: suitable

Pf

175-177 °C (lit.)

λmax

260 nm

ε (coefficient d'extinction)

≥700 at 257-263 nm

Application(s)

diagnostic assay manufacturing
hematology
histology

Température de stockage

room temp

Chaîne 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

Clé InChI

OAZWDJGLIYNYMU-UHFFFAOYSA-N

Catégories apparentées

Application

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

Actions biochimiques/physiologiques

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]

Attention

Photo-ionization can cause color variations

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

Pictogrammes

Environment
GHS09

Mention d'avertissement

Warning

Mentions de danger

H410

Conseils de prudence

P273 - P391 - P501

Classification des risques

Aquatic Acute 1 - Aquatic Chronic 1

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
0000236216
0000236216
MKBW1177V
MKBR8820V
MKBR8440V

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

R T Wilson et al.
Journal of AOAC International, 77(5), 1137-1142 (1994-09-01)
A gas chromatographic/mass spectrometric (GC/MS) procedure for confirming the identity of leucogentian violet (LGV) in chicken fat was developed for regulatory application. The unused portion of the extract remaining from a determinative procedure was back-extracted into an organic phase, concentrated
J E Roybal et al.
Journal - Association of Official Analytical Chemists, 73(6), 940-946 (1990-11-01)
A method is presented for determination of residues of gentian violet (GV), its demethylated metabolites (pentamethyl and tetramethyl), and leucogentian violet (LGV) in chicken tissue. The analytes are extracted from tissue with acetonitrile/buffer and partitioned into methylene chloride. Polar lipids
Xueli Wu et al.
Journal of chromatography. A, 1172(2), 121-126 (2007-10-24)
A method has been developed for the simultaneous determination of malachite green, gentian violet and their leuco-metabolites in various aquatic products using isotope dilution liquid chromatography-linear ion trap mass spectrometry without post-column oxidation. Sample was extracted with McIlvaine buffer and
J J McDonald et al.
Drug metabolism and disposition: the biological fate of chemicals, 12(3), 330-336 (1984-05-01)
Cellular suspensions of microflora isolated from human feces and from intestinal contents of rat and chicken transformed the triphenylmethane dye gentian violet under anaerobic conditions. Pure cultures of nine genera of strict and facultative anaerobes were also active. All pure
L G Rushing et al.
Journal of chromatography. B, Biomedical applications, 674(1), 125-131 (1995-12-01)
A sensitive analytical procedure for the determination of residues of leucogentian violet (LGV) and gentian violet (GV) in catfish tissue is presented. Frozen (-20 degrees C) catfish fillets were cut into chunks and then blended in a Waring blender. A
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Questions

1–2 sur 2 questions  

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

    1 réponse

    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.

      Utile ?

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

    1 réponse

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

      Utile ?

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