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Merck

M9015

Malachite Green oxalate salt

Dye content, ≥90%, certified by the Biological Stain Commission, powder or crystals

Sinónimos:

N,N,N′,N′-Tetramethyl-4,4′-diaminotriphenylcarbenium oxalate, Basic Green 4

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Fórmula empírica (notación de Hill):
C23H25N2 · C2HO4 · 0.5C2H2O4
Número CAS:
Peso molecular:
463.50
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
EC Number:
219-441-7
Beilstein/REAXYS Number:
3644550
Colour Index Number:
42000
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Nombre del producto

Malachite Green oxalate salt, certified by the BSC

agency

certified by the BSC

Quality Level

form

powder or crystals

composition

Dye content, ≥90%

technique(s)

microbe id | staining: suitable

color

faint green to very dark green

mp

144-150 °C

solubility

H2O: 1 mg/mL, blue to very deep blue

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

C[N+](C)=C1C=CC(C=C1)=C(C2=CC=C(N(C)C)C=C2)C3=CC=CC=C3.[O-]C(C(O)=O)=O

InChI

1S/C23H25N2.C2H2O4/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;3-1(4)2(5)6/h5-17H,1-4H3;(H,3,4)(H,5,6)/q+1;/p-1

InChI key

REZFCYOVFCJTDG-UHFFFAOYSA-M

General description

Malachite Green is a basic dye belonging to the triphenylmethane group. It is required in biology for the staining of microscopic samples, such as plant tissue, yeast and bacteria. The malachite green method is a sensitive method for the detection of released phosphate.

Application

Certified for use as a counterstain for paraffin embedded botanical material; as a spore stain for bacteria by the method of Schaeffer and Fulton.
Malachite Green oxalate salt has been used for phosphate quantification.
Malachite Green oxalate salt has been used:
  • in the preparation of Alexander staining solution for cell viability test
  • in malachite green-ammonium molybdate assay for determining the adenosine triphosphatase (ATPase) activity of binding immunoglobulin protein (BiP)
  • as a hydrophobic ion, to study the label-free molecular transport in the living cell membranes of Escherichia coli in real time by second-harmonic generation (SHG) method

Other Notes

The molecular mass of malachite green oxalate is expressed as either:
927.00 g/mol - the mass of 2 mol malachite green + 2 mol monohydrogen oxalate + 1 mol dihydrogen oxalate, or
463.50 g/mol - the mass of 1 mol malachite green + 1 mol monohydrogen oxalate + 0.5 mol dihydrogen oxalate


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Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Repr. 2

Clase de almacenamiento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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Papp D, et. al.
Autophagy, 12, 273-273 (2016)
Synthetic Dyes in Biology, Medicine And Chemistry (2012)
Biophysical analysis of the effect of chemical modification by 4-oxononenal on the structure, stability, and function of binding immunoglobulin protein (BiP)
Shah DD, et al.
Testing, 12(9), e0183975-e0183975 (2017)