Malachite green oxalate, green powder C.I. 42000
Supplier: MP Biomedicals
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Danger
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Synonyms:
Malachite green hemioxalate, N,N,N',N'-Tetramethyl-4,4'-diaminotriphenylcarbenium oxalate, Bis (N-{4-[[4-(dimethylamino)phenyl](phenyl)methylene]cyclohexa-2,5-dien-1-ylidene}-N-methylmethanaminium) trioxalate, Basic Green 4, N-[4-[[4-(Dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-methanaminium, ethanedioate, ethanedioate(2:2:1)
Malachite green is use as counter-stain against fuchsin which stains gram-positive and gram-negative bacteria reddish colors and safranin which stains nuclei red. Malachite green stain background to the surrounding tissue blue-green.
Malachite green is also used as a pH Indicator between pH 0.2 (green) - 1.8 (blue-green). Used as a botanical counterstain.
Soluble in water (40 mg/ ml), EGME (40 mg/ ml), EtOH (50 mg/ ml).
Formula:
C₅₂H₅₄N₄O₁₂ MW: 927,02 g/mol |
MDL Number:
MFCD00011766 CAS Number: 2437-29-8 UN: 2811 ADR: 6.1,III |
Specification Test Results
Identity Test | Passes |
UV/Vis: l max (water) | 614 - 618 nm |
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