71971-35-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71971-35-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,7 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71971-35:
(7*7)+(6*1)+(5*9)+(4*7)+(3*1)+(2*3)+(1*5)=142
142 % 10 = 2
So 71971-35-2 is a valid CAS Registry Number.