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889659-64-7

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889659-64-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 889659-64-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,9,6,5 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 889659-64:
(8*8)+(7*8)+(6*9)+(5*6)+(4*5)+(3*9)+(2*6)+(1*4)=267
267 % 10 = 7
So 889659-64-7 is a valid CAS Registry Number.

889659-64-7Downstream Products

889659-64-7Relevant academic research and scientific papers

Novel azo dye compound

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Page/Page column 11, 12-13, (2008/06/13)

A compound represented by formula (I): Formula (I) wherein Z1 and Z2 each are atoms necessary for forming an aromatic ring; V1 and V2 each are a substituent W1 or W2; when at least one V1 is W1, at least one V2 is W2, or when at least one V1 is W2, at least one V2 is W1; r is 1 to 4; s is 1 to 4; M1 is a counter ion; m1 is the number necessary for neutralizing charge; W1 is a hydroxyl, primary- or secondary- or tertiary-amino, acylamino, or sulfonamido group; W2 is a nitro, cyano, alkoxycarbonyl, aryloxycarbonyl, alkyl- or aryl-sulfonyl, carbamoyl, sulfamoyl, alkenyl, alkynyl, aryl, heterocyclic, sulfo, carboxyl, heterocyclic oxy, ammonio, alkyl- or aryl-sulfinyl, alkyl- or aryl-sulfonyl, acyl, or aryl- or heterocyclic-azo group; and the aromatic ring may have a substituent other than V1 and V2.

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