FIELD: organic chemistry, in particular anthraquinone dyes useful for dyeing in polymer material mass.
SUBSTANCE: invention relates to compounds of formula I 
wherein each R1 and R2 are independently NHR5; each R2 and R3 are independently -OR6 or -OR7; R5 is aryl or hydroxyalkyl; R6 is aryl; and R7 is aryl or hydroxyalkyl.
EFFECT: dyes of high heat stability, light stability and dyeing ability; dyed polymer materials of high strength.
5 cl, 1 tbl, 4 ex
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