1243. Bis(4-amino-1-anthraquinonyl)amine

Nomenclature

CAS number: 128-87-0
1,1′-Iminobis[4-amino-9,10-anthracenedione]; 4,4′-diamino-1,1′-dianthraquinonylamine; 4,4′-diamino-1,1′-anthrimide; 4,4′-diamino-1,1′-iminobisanthraquinone.
C28H17N3O4; mol wt 459.45.
C 73.20%, H 3.73%, N 9.15%, O 13.93%.

Description and references

Prepn: DE 255822 (1913); Frdl. 11, 615; Tinker, Stallmann, US 2420022 (1947), C.A. 41, 5730 (1947).

Chemical structure

Properties

On heating with fuming sulfuric acid (30% SO3) at 100° yields a dark powder, sol in water or alc with bluish-black coloration, used as dyestuff for wool. On heating with molten potassium hydroxide at 190° and oxidizing the reaction product with sodium hypochlorite, an olive-green vat dye is obtained.

Use

In the textile industry; in the determination of boron: Beckett, Webster, Analyst 68, 306 (1943), C.A. 38, 38 (1944).