71583-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71583-97-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,8 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71583-97:
(7*7)+(6*1)+(5*5)+(4*8)+(3*3)+(2*9)+(1*7)=146
146 % 10 = 6
So 71583-97-6 is a valid CAS Registry Number.