649578-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649578-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,5,7 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 649578-88:
(8*6)+(7*4)+(6*9)+(5*5)+(4*7)+(3*8)+(2*8)+(1*8)=231
231 % 10 = 1
So 649578-88-1 is a valid CAS Registry Number.