Leuco malachite green, powder, Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPY
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Warning
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Synonyms:
4,4'-Bis(dimethylamino)triphenylmethane, 4,4'-(Phenylmethylene)bis(N,N-dimethylaniline), 4,4'-Tetramethyldiaminotriphenylmethane, 4,4'-Benzylidenebis(N,N-dimethylaniline), Leucomalachite green
M-Clarity™ quality level = MQ100
Leucomalachite green has been used as a reagent in presumptive tests which are used to detect invisible blood stains.
Leucomalachite green (LMG) is a chief metabolite of malachite green, a triphenylmethane dye that has been used generally as an antifungal drug in the fish industry. DNA adducts formed in livers of rats fed with leucomalachite green have been observed with little mutagenic or carcinogenic effect. LMG is one of the most commonly used reagents for presumptive blood test. It gives a characteristic green color in the presence of blood. LMG destroys DNA in the blood, therefore, the chances of DNA recovery and amplification is reduced or eliminated.
Formula:
C₂₃H₂₆N₂ MW: 330,48 g/mol Melting Pt: 100,..102 °C (lit.) Storage Temperature: Room Temperature |
MDL Number:
MFCD00008315 CAS Number: 129-73-7 EINECS: 204-961-9 |
Specification Test Results
Appearance (Colour); White to Tan, Light Blue or Light Green | Conforms to Requirements |
Appearance (Form) | Powder |
Infrared spectrum | Conforms to Structure |
Wavelength, c = 0.01 g/L in CHCl₃ | 259 - 265 nm |
Extinction Coefficient | Conforms to Structure |
Carbon | Typically 83.0 - 84.0% |
Nitrogen | Typically 8.0 - 9.0% |
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