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Quinoneimine dyes from hydroxybenzamidobenzaldehyde and hydroxybenzsulfamido-benzaldehyde acetals of lower alkanols and 1,2-and 1,3-alkanediols
Quinoneimine dyes from hydroxybenzamidobenzaldehyde and hydroxybenzsulfamido-benzaldehyde acetals of lower alkanols and 1,2-and 1,3-alkanediols