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(E)-3-(hydroxy(phenyl)methylene)-6-phenyl-2H-pyran-2,4(3H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57689-80-2

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57689-80-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57689-80-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57689-80:
(7*5)+(6*7)+(5*6)+(4*8)+(3*9)+(2*8)+(1*0)=182
182 % 10 = 2
So 57689-80-2 is a valid CAS Registry Number.

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