1089210-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1089210-20-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,8,9,2,1 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1089210-20:
(9*1)+(8*0)+(7*8)+(6*9)+(5*2)+(4*1)+(3*0)+(2*2)+(1*0)=137
137 % 10 = 7
So 1089210-20-7 is a valid CAS Registry Number.