1178642-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1178642-43-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,8,6,4 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1178642-43:
(9*1)+(8*1)+(7*7)+(6*8)+(5*6)+(4*4)+(3*2)+(2*4)+(1*3)=177
177 % 10 = 7
So 1178642-43-7 is a valid CAS Registry Number.