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Merck
CN

69669

Leucomalachite Green

analytical standard

Synonym(s):

4,4′-Benzylidenebis(N,N-dimethylaniline)

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About This Item

Linear Formula:
C6H5CH[C6H4N(CH3)2]2
CAS Number:
129-73-7
Molecular Weight:
330.47
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329761851
EC Number:
204-961-9
Beilstein/REAXYS Number:
2140506
MDL number:
MFCD00008315

Key Documents

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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

SMILES string

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

grade

analytical standard

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

Quality Level

100

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Related Categories

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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL7375
BCCG0651

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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)
A simple and rapid method for the identification and quantification of malachite green and its metabolite in hake by HPLC?MS/MS
Nebot C, et al.
Food Control, 31(1), 102-107 (2013)
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
Chaoyang Long et al.
Journal of chromatography. A, 1203(1), 21-26 (2008-07-29)
With a new oxidant for post-column chemical derivation, a novel approach was developed for the determination of Malachite Green (MG) and Leucomalachite Green (LMG) in fish by high-performance liquid chromatography (HPLC). A C(8) column was used for separation, and elution
Abbas Afkhami et al.
Talanta, 82(2), 785-789 (2010-07-07)
A novel and sensitive extraction procedure using maghemite nanoparticles (gamma-Fe(2)O(3)) modified with sodium dodecyl sulfate (SDS), as an efficient solid phase, was developed for removal, preconcentration and spectrophotometric determination of trace amounts of malachite green (MG) and leuco-malachite green (LMG).
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