20615-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20615-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,1 and 5 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20615-61:
(7*2)+(6*0)+(5*6)+(4*1)+(3*5)+(2*6)+(1*1)=76
76 % 10 = 6
So 20615-61-6 is a valid CAS Registry Number.