| 摘要 |
<p>The novel dye compound <CHEM> wherein R1 and R2, which may be the same or different are hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, alkoxyalkyl, hydroxyalkoxyalkyl and amino alkyl, the alkyl group and the alkoxy group having from 1 to 6 carbons, and R3 is a compatible substituent group, for example, hydrogen, alkyl, hydroxyalkyl, hydroxy and halogen. The dye compound is especially useful in hair dye compositions containing same.</p> |
