Flame-resisting wool with halo-organic compounds. Part I: Water-soluble or emulsifiable bromine derivatives incorporating one or more reactive centers was written by Thorsen, W. J.. And the article was included in Textile Research Journal in 1976.Reference of 24407-32-7 This article mentions the following:
The flame retardancy of aromatic compounds having Br incorporated with SO3H groups and other reactive sites increased as the acidic nature of the mol. increased. 2,4,6-Tribromometanilic acid [58585-89-0] and tetrabromophthalic acid [13810-83-8], although not washfast, were the most promising; the former was capable of fireproofing wool which had been made shrink-resistant by ozone. In the experiment, the researchers used many compounds, for example, 4,5,6,7-Tetrabromoisoindoline-1,3-dione (cas: 24407-32-7Reference of 24407-32-7).
4,5,6,7-Tetrabromoisoindoline-1,3-dione (cas: 24407-32-7) belongs to indole derivatives. Indole is an important structural motif of various drugs, therapeutic leads besides its prevalence in numerous natural products, agrochemicals, perfumery, and dyes. More than 200 indole derivatives have already been marketed as drugs or are under advanced stages of clinical trials.Reference of 24407-32-7
Referemce:
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