68130-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68130-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,3 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68130-99:
(7*6)+(6*8)+(5*1)+(4*3)+(3*0)+(2*9)+(1*9)=134
134 % 10 = 4
So 68130-99-4 is a valid CAS Registry Number.