Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 69-89-6, Name is Xanthine, molecular formula is C5H4N4O2. In an article, author is Talukdar, Ranadeep,once mentioned of 69-89-6, COA of Formula: https://www.ambeed.com/products/69-89-6.html.
The reactions of SeO2 with a wide range of differently functionalized N-protected indoles and pyrroles were studied in a green approach. The reactions occurred smoothly in ethanol at room temperature to afford 3,3 ‘-diindolyl and 2,2 ‘-dipyrrolyl selenides without any need of inert conditions.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles