20136-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20136-63-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,3 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20136-63:
(7*2)+(6*0)+(5*1)+(4*3)+(3*6)+(2*6)+(1*3)=64
64 % 10 = 4
So 20136-63-4 is a valid CAS Registry Number.