3-Ethoxythiophene-2-carboxylic acid is used as a pharmaceutical intermediate.
Visvanathan Ramanathan; Robert Levine. The Alkylation and Arylation of 2-Thienyllithium and the Reactions of 3-Methylthiophene with Organometallic Compounds. Journal of Organic Chemistry. 1962, 27 (5), 1667-1670.
Norman P. Gould; Ta-Jyh Lee. Dianions of methylated thiophene-2-carboxylic acids: their formation and reactivity. J. Org. Chem. 1980, 45 (22), 4528-4530.
Mentions de danger (UE): H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Mentions de prudence: P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.