1177489-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1177489-18-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,7,4,8 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1177489-18:
(9*1)+(8*1)+(7*7)+(6*7)+(5*4)+(4*8)+(3*9)+(2*1)+(1*8)=197
197 % 10 = 7
So 1177489-18-7 is a valid CAS Registry Number.