97021-35-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97021-35-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,2 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 97021-35:
(7*9)+(6*7)+(5*0)+(4*2)+(3*1)+(2*3)+(1*5)=127
127 % 10 = 7
So 97021-35-7 is a valid CAS Registry Number.