1968-30-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1968-30-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,6 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1968-30:
(6*1)+(5*9)+(4*6)+(3*8)+(2*3)+(1*0)=105
105 % 10 = 5
So 1968-30-5 is a valid CAS Registry Number.