1187742-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187742-49-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,7,4 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1187742-49:
(9*1)+(8*1)+(7*8)+(6*7)+(5*7)+(4*4)+(3*2)+(2*4)+(1*9)=189
189 % 10 = 9
So 1187742-49-9 is a valid CAS Registry Number.