30819-56-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30819-56-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,8,1 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 30819-56:
(7*3)+(6*0)+(5*8)+(4*1)+(3*9)+(2*5)+(1*6)=108
108 % 10 = 8
So 30819-56-8 is a valid CAS Registry Number.