77943-83-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77943-83-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,4 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77943-83:
(7*7)+(6*7)+(5*9)+(4*4)+(3*3)+(2*8)+(1*3)=180
180 % 10 = 0
So 77943-83-0 is a valid CAS Registry Number.