1170719-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1170719-57-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,0,7,1 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1170719-57:
(9*1)+(8*1)+(7*7)+(6*0)+(5*7)+(4*1)+(3*9)+(2*5)+(1*7)=149
149 % 10 = 9
So 1170719-57-9 is a valid CAS Registry Number.