Description

Leucomalachite Green is the colorless, reduced precursor to the vivid green dye Malachite Green, widely used as a chromogenic reagent in analytical chemistry. Its primary commercial value lies in its high sensitivity and specificity for the detection of blood and certain oxidizing agents, making it a critical component in forensic and diagnostic kits. This compound is essential for manufacturers and research laboratories in the forensic science, diagnostic, and analytical chemistry sectors requiring reliable and precise detection methods.

Application

• Forensic Blood Detection: Used as the key active reagent in presumptive tests for blood (e.g., Hemastix®, Kastle-Meyer test) due to its reaction with hemoglobin's peroxidase-like activity.
• Diagnostic Reagent Manufacturing: Serves as a critical raw material in the production of test strips and kits for occult blood detection in medical diagnostics.
• Analytical Chemistry: Employed as a sensitive redox indicator and chromogen in enzymatic assays and for the detection of peroxides and other oxidizing species.
• Research & Development: Utilized in biochemical and forensic research to study oxidation-reduction processes and develop new detection methodologies.
• Quality Control for Disinfectants: Can be applied in testing protocols to verify the presence and activity of peroxygen-based disinfectants.

Basic Information

Product Name	Leucomalachite Green
CAS No.	129-73-7
Molecular Formula	C23H24N2
Molecular Weight	328.45 g/mol
Synonyms	Leuco Malachite Green; 4,4'-Bis(dimethylamino)triphenylmethane; N,N,N',N'-Tetramethyl-4,4'-diaminotriphenylmethane; p,p'-Bis(dimethylamino)triphenylmethane; Benzenamine, 4,4'-[(4-(dimethylamino)phenyl)phenylmethylene]bis[N,N-dimethyl-]; LMG; Basic Green 4, leuco base; CI 42000, leuco base
EINECS	204-957-1

Quality Control

Our Leucomalachite Green is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity, which is critical for sensitive analytical applications. Each lot is tested against stringent in-house specifications, with key parameters including identity confirmation, purity assay, and absence of interfering impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	102 - 106 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.