1186634-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1186634-98-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,6,6,3 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1186634-98:
(9*1)+(8*1)+(7*8)+(6*6)+(5*6)+(4*3)+(3*4)+(2*9)+(1*8)=189
189 % 10 = 9
So 1186634-98-9 is a valid CAS Registry Number.