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69669

Supelco

Leucomalachite Green

analytical standard

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Synonym(s):
4,4′-Benzylidenebis(N,N-dimethylaniline)
Linear Formula:
C6H5CH[C6H4N(CH3)2]2
CAS Number:
Molecular Weight:
330.47
Beilstein/REAXYS Number:
2140506
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

assay

≥98.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

100-102 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

SMILES string

CN(C)c1ccc(cc1)C(c2ccccc2)c3ccc(cc3)N(C)C

InChI

1S/C23H26N2/c1-24(2)21-14-10-19(11-15-21)23(18-8-6-5-7-9-18)20-12-16-22(17-13-20)25(3)4/h5-17,23H,1-4H3

InChI key

WZKXBGJNNCGHIC-UHFFFAOYSA-N

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application(s)

cleaning products
cosmetics
food and beverages
personal care

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

format

neat

format

-

format

neat

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

grade

analytical standard

grade

analytical standard

grade

-

grade

analytical standard

assay

≥98.0% (HPLC)

assay

-

assay

-

assay

-

General description

Leucomalachite green is a triphenylmethane dye and a metabolite of malachite green.

Application

Leucomalachite green may be used as an analytical reference standard for the quantification of the analyte in fish samples using different chromatography techniques.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Muta. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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25G
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Determination of malachite green and leucomalachite green in edible goldfish muscle by liquid chromatography?ion trap mass spectrometry
Lee C-K, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 843(2), 247-251 (2006)
Kamila Mitrowska et al.
Journal of chromatography. A, 1207(1-2), 94-100 (2008-09-06)
A liquid chromatography with visible and fluorescence detection (LC-vis/FLD) method for screening and a liquid chromatography with mass spectrometry (LC-MS/MS) method for the confirmation of malachite green (MG) and its major metabolite, leucomalachite green (LMG) residues in water have been
Sara L Stead et al.
Analytical chemistry, 82(7), 2652-2660 (2010-03-06)
A robust screening assay employing solid phase extraction (SPE) followed by a novel aptamer-based procedure is presented for the rapid detection and semiquantitation of the triphenylmethane dye, Malachite Green (MG) and its primary metabolite Leucomalachite Green (LMG) in fish tissue.
Juliana C Hashimoto et al.
Journal of AOAC International, 95(3), 913-922 (2012-07-24)
A simple method using LC/MS/MS was developed and validated to determine residues of malachite green (MG) and leucomalachite green (LMG) in fish fillet. A modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) technique was used to perform the sample
Zoe Hall et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 874(1-2), 95-100 (2008-09-27)
A high accuracy method for the quantification of malachite green (MG) and leucomalachite green (LMG) in salmon is described. Analytical challenges including the effects of analyte instability and matrix suppression were minimised by the use of exact matching isotope dilution

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