| 摘要 |
<p>Dyes are of formula (where R1 may be H, Cl, CH3, CH3O, C2H5O, C6H5, C6H5O or OH; R2 may be H, Cl or CH3, R1 and R2 may together form a fused benzene ring, X1 may be H, F, Cl, OH, CH3O, C2H5O, C6H5O, 1-4C alkyl, phenyl, (opt. substd) benzoyl, (opt. substd) acylamine, alkylaminocarbonylamino or alkylaminosulphonylamino, X2 may be H, Cl or CH3 and n is 1-4).</p> |
