Auxins II: the effect of chlorinated indolylacetic acids on pea stems was written by Katekar, Gerard F.;Geissler, Art E.. And the article was included in Phytochemistry (Elsevier) in 1982.Electric Literature of C10H8ClNO2 This article mentions the following:
Assessment of a series of chlorinated IAA derivatives for auxin activity on pea stem sections gave results suggesting that the activities shown are reasonably consistent with a receptor site theory of structure-activity previously proposed by G. F. Katekar (1979). In the experiment, the researchers used many compounds, for example, 2-(5-Chloro-1H-indol-3-yl)acetic acid (cas: 1912-45-4Electric Literature of C10H8ClNO2).
2-(5-Chloro-1H-indol-3-yl)acetic acid (cas: 1912-45-4) belongs to indole derivatives. Indole exists overwhelmingly in the 1H-indole form as do other simple indoles. Moreover, it is known that it controls biofilm formation. However, the role of indole in the cell has not been fully elucidated.Electric Literature of C10H8ClNO2
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