649571-01-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649571-01-7 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 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 649571-01:
(8*6)+(7*4)+(6*9)+(5*5)+(4*7)+(3*1)+(2*0)+(1*1)=187
187 % 10 = 7
So 649571-01-7 is a valid CAS Registry Number.