97034-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97034-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,3 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97034-91:
(7*9)+(6*7)+(5*0)+(4*3)+(3*4)+(2*9)+(1*1)=148
148 % 10 = 8
So 97034-91-8 is a valid CAS Registry Number.