210489-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210489-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,4,8 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 210489-89:
(8*2)+(7*1)+(6*0)+(5*4)+(4*8)+(3*9)+(2*8)+(1*9)=127
127 % 10 = 7
So 210489-89-7 is a valid CAS Registry Number.