787564-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 787564-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,7,5,6 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 787564-31:
(8*7)+(7*8)+(6*7)+(5*5)+(4*6)+(3*4)+(2*3)+(1*1)=222
222 % 10 = 2
So 787564-31-2 is a valid CAS Registry Number.