15967-15-4Relevant articles and documents
NOVEL IMPROVED METHOD FOR SYNTHESIZING DIAMINOPHENOTHIAZINE COMPOUNDS
-
Paragraph 00212-00213, (2020/12/30)
The present invention relates to chemical synthesis and purification. Specifically, the present invention relates to a novel and improved method of synthesizing high purity diaminophenothiazine compounds of Formula I, specifically Methylene Blue and its pharmaceutically acceptable salt or hydrates thereof. The present invention relates to an improved method of synthesizing Methylene Blue compound of higher purities than those achievable by using known methods of synthesis as per the requirements of the international pharmacopoeias like USP and EP.
SYNTHESIS OF A THIOSULFONIC ACID BY A STEP OF PERIODATE MEDIATED OXIDATIVE COUPLING OF A THIOSULFONIC ACID WITH AN ANILINE
-
Page/Page column 39; 40, (2018/07/29)
The present invention pertains generally to the field of chemical synthesis, and more particularly to methods for the chemical synthesis of a thiosulfonic acid of Formula (1) by a step of periodate mediated oxidative coupling of a thiosulfonic acid of For
METHODS OF CHEMICAL SYNTHESIS OF DIAMINOPHENOTHIAZINIUM COMPOUNDS INVOLVING THE USE OF PERSULFATE OXIDANTS
-
Page/Page column 59, (2010/12/17)
This invention pertains generally to the field of chemical synthesis and purification, and more specifically to methods of synthesizing and purifying certain 3,7-diamino- phenothiazin-5-ium compounds (referred to herein as "diaminophenothiazinium compound