1187984-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187984-45-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,9,8 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1187984-45:
(9*1)+(8*1)+(7*8)+(6*7)+(5*9)+(4*8)+(3*4)+(2*4)+(1*5)=217
217 % 10 = 7
So 1187984-45-7 is a valid CAS Registry Number.