1020989-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020989-88-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,9,8 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1020989-88:
(9*1)+(8*0)+(7*2)+(6*0)+(5*9)+(4*8)+(3*9)+(2*8)+(1*8)=151
151 % 10 = 1
So 1020989-88-1 is a valid CAS Registry Number.