FIELD: chemistry.
SUBSTANCE: invention relates to 4,5-bis-(1',2':3',4'-di-O-isopropylidene-α-D-galactopyranoso-6'-yl) phthalonitrile, which can be used in synthesis of zinc octakis-[2,3,9,10,16,17,24,25-(α/β-D-galactopyranoso-6'-yl)]phthalocyanine which is capable of dying cellulose fibre green.
EFFECT: said dye is characterised by resistance to moisture and heat effects.
1 cl, 2 ex
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