943516-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 943516-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,3,5,1 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 943516-56:
(8*9)+(7*4)+(6*3)+(5*5)+(4*1)+(3*6)+(2*5)+(1*6)=181
181 % 10 = 1
So 943516-56-1 is a valid CAS Registry Number.