1022891-79-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1022891-79-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,2,8,9 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1022891-79:
(9*1)+(8*0)+(7*2)+(6*2)+(5*8)+(4*9)+(3*1)+(2*7)+(1*9)=137
137 % 10 = 7
So 1022891-79-7 is a valid CAS Registry Number.