20603-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20603-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20603-67:
(7*2)+(6*0)+(5*6)+(4*0)+(3*3)+(2*6)+(1*7)=72
72 % 10 = 2
So 20603-67-2 is a valid CAS Registry Number.