77844-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77844-43-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,4 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77844-43:
(7*7)+(6*7)+(5*8)+(4*4)+(3*4)+(2*4)+(1*3)=170
170 % 10 = 0
So 77844-43-0 is a valid CAS Registry Number.