78019-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78019-30-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,1 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78019-30:
(7*7)+(6*8)+(5*0)+(4*1)+(3*9)+(2*3)+(1*0)=134
134 % 10 = 4
So 78019-30-4 is a valid CAS Registry Number.