76780-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76780-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,7,8 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76780-17:
(7*7)+(6*6)+(5*7)+(4*8)+(3*0)+(2*1)+(1*7)=161
161 % 10 = 1
So 76780-17-1 is a valid CAS Registry Number.