CAS 676348-42-8 appears in our catalog under these names: 5-Ethylthiophene-2-carbohydrazide, 97%, 5-Ethylthiophene-2-carbohydrazide, 95+%, 5-Ethyl-thiophene-2-carboxylic acid hydrazide. Offered by: Combi-blocks, AmBeed, Fluorochem. Available pack sizes: 1g, 5g, 250mg.