97812-34-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97812-34-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,1 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97812-34:
(7*9)+(6*7)+(5*8)+(4*1)+(3*2)+(2*3)+(1*4)=165
165 % 10 = 5
So 97812-34-5 is a valid CAS Registry Number.