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5,6-Dimethoxyindole-2-carboxylic acid is used as a reagent and heterocyclic building blocks in synthetic chemistry. It is used to prepare a melanin-like polymer, poly(5,6-dimethoxyindole-2-carboxylic acid), which exhibits electrochromic properties.
Gunbas, G.; Toppare, L. Electrochromic conjugated polyheterocycles and derivatives-highlights from the last decade towards realization of long lived aspirations. Chem. Commun. 2012, 48 (8), 1083-1101.
Kim, Y. J.; Wu, W.; Chun, S. E.; Whitacre, J. F.; Bettinger, C. J. Biologically derived melanin electrodes in aqueous sodium-ion energy storage devices. Proc. Natl. Acad. Sci. U.S.A 2013, 110 (52), 20912-20917.
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant