423730-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423730-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,3 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 423730-68:
(8*4)+(7*2)+(6*3)+(5*7)+(4*3)+(3*0)+(2*6)+(1*8)=131
131 % 10 = 1
So 423730-68-1 is a valid CAS Registry Number.