30681-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30681-89-1 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 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 30681-89:
(7*3)+(6*0)+(5*6)+(4*8)+(3*1)+(2*8)+(1*9)=111
111 % 10 = 1
So 30681-89-1 is a valid CAS Registry Number.