67780-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67780-84-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,8 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 67780-84:
(7*6)+(6*7)+(5*7)+(4*8)+(3*0)+(2*8)+(1*4)=171
171 % 10 = 1
So 67780-84-1 is a valid CAS Registry Number.