649579-27-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649579-27-1 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 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 649579-27:
(8*6)+(7*4)+(6*9)+(5*5)+(4*7)+(3*9)+(2*2)+(1*7)=221
221 % 10 = 1
So 649579-27-1 is a valid CAS Registry Number.