20781-35-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20781-35-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,8 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20781-35:
(7*2)+(6*0)+(5*7)+(4*8)+(3*1)+(2*3)+(1*5)=95
95 % 10 = 5
So 20781-35-5 is a valid CAS Registry Number.