20841-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20841-49-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,4 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20841-49:
(7*2)+(6*0)+(5*8)+(4*4)+(3*1)+(2*4)+(1*9)=90
90 % 10 = 0
So 20841-49-0 is a valid CAS Registry Number.