97211-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97211-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,1 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 97211-83:
(7*9)+(6*7)+(5*2)+(4*1)+(3*1)+(2*8)+(1*3)=141
141 % 10 = 1
So 97211-83-1 is a valid CAS Registry Number.