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Structure of 50743-17-4
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3-Cyanochromone (4-Oxo-4H-1-benzopyran-3-carbonitrile), a 3-substituted chromone, is a cyano substituted 1-benzopyran-4-one. It is an ,-unsaturated nitrile and also an ,-unsaturated ketone. Its molecule has electron deficiency at 3 sites i.e C (carbon) at second position, C of cyano and carbonyl group. 2-Amino-3-(alkyliminomethyl)chromones are obtained as major products during its reaction with aliphatic amines.3-Cyanochromone may be used in the syntheses of following: 2-aminochromone-3-carboxamide3-amino-4H-chromeno[3,4-d]isoxazol-4-one 3-(diaminomethylene)chroman-2,4-dione functionalized novel spirobenzofuranones6H-bis-[1]-benzopyrano[2,3-b:3,4-e]pyridin-8(8H)ones and 3-(2-hydroxybenzoyl)-5H-[1]benzopyrano[4,3-b]pyridine
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GHS Pictogram :
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GHS No : GHS06
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Signal Word : Danger
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UN#: 3439
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Class : 6.1
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Packing Group : Ⅲ
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Hazard Statements : H301-H312+H332
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: