1089706-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1089706-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,8,9,7,0 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1089706-99:
(9*1)+(8*0)+(7*8)+(6*9)+(5*7)+(4*0)+(3*6)+(2*9)+(1*9)=199
199 % 10 = 9
So 1089706-99-9 is a valid CAS Registry Number.