| 摘要 |
Water-soluble fiber-reactive yellow dyestuffs of the formula <CHEM> wherein M is hydrogen or an alkali metal, such as sodium, potassium or lithium, or the equivalent of an alkaline earth metal, such as of calcium, and X is the vinyl group or a group of the formula (2) -CH2 - CH2 - Z (2) in which Z is hydroxy, chlorine, bromine, sulfato, thiosulfato, phosphato, acetyloxy, propionyloxy or di-(lower alkyl)-amino. Process for their preparation. Liquid compositions of said dyestuffs are also disclosed. Use of these dyestuffs in coloring a material made of cellulose, wool, silk and/or polyamide fibers. |
