30689-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30689-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,8 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 30689-71:
(7*3)+(6*0)+(5*6)+(4*8)+(3*9)+(2*7)+(1*1)=125
125 % 10 = 5
So 30689-71-5 is a valid CAS Registry Number.