20896-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20896-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,9 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20896-17:
(7*2)+(6*0)+(5*8)+(4*9)+(3*6)+(2*1)+(1*7)=117
117 % 10 = 7
So 20896-17-7 is a valid CAS Registry Number.