70309-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70309-97-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,0 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70309-97:
(7*7)+(6*0)+(5*3)+(4*0)+(3*9)+(2*9)+(1*7)=116
116 % 10 = 6
So 70309-97-6 is a valid CAS Registry Number.