The azo compounds are intensely coloured, but are not capable of being used as dyestuffs unless they contain salt-forming, acid or basic groups (see Dyeing).
The ortho-compounds condense to azimido benzenes, the metacompounds yield azo-dyestuffs, and the para-compounds yield bis-diazo compounds of the type XN2�C6H4�N2X.
dyestuffs הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד