1097641-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1097641-43-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,7,6,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1097641-43:
(9*1)+(8*0)+(7*9)+(6*7)+(5*6)+(4*4)+(3*1)+(2*4)+(1*3)=174
174 % 10 = 4
So 1097641-43-4 is a valid CAS Registry Number.