650571-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 650571-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,0,5,7 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 650571-91:
(8*6)+(7*5)+(6*0)+(5*5)+(4*7)+(3*1)+(2*9)+(1*1)=158
158 % 10 = 8
So 650571-91-8 is a valid CAS Registry Number.