20765-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20765-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,6 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20765-03:
(7*2)+(6*0)+(5*7)+(4*6)+(3*5)+(2*0)+(1*3)=91
91 % 10 = 1
So 20765-03-1 is a valid CAS Registry Number.