3,7-Diaminophenothiazin-5-ium acetate(CAS: 78338-22-4)

3,7-Diaminophenothiazin-5-ium acetate is a white or off-white crystalline solid with a molecular weight of approximately 268.23 g/mol. It is slightly soluble in water and ethanol. Chemically, it is highly reactive and can undergo substitution and condensation reactions. It has a melting point of around 170°C and a boiling point of about 300°C under vacuum.

3,7-Diaminophenothiazin-5-ium acetate is usually synthesized by the acetylation of 3,7-diaminophenothiazine. This process involves the use of acetic anhydride and a basic catalyst like pyridine. The reaction typically yields a high purity product with good selectivity, and the yield can be as high as 90% under optimized conditions.

3,7-Diaminophenothiazin-5-ium acetate is used in the pharmaceutical industry for the synthesis of certain drugs, in the polymer industry for the production of special polymers, and in the sensor industry for the development of conductive materials. It is also used in semiconductor applications for its electronic properties.

When handling 3,7-Diaminophenothiazin-5-ium acetate, it is essential to use appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats. The compound should be stored in a cool, dry place away from direct sunlight and flammable materials. Spills should be cleaned up using appropriate absorbent materials, and the area should be well-ventilated. Always refer to the Safety Data Sheet (SDS) for specific handling instructions and emergency procedures.