765305-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 765305-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,5,3,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 765305-19:
(8*7)+(7*6)+(6*5)+(5*3)+(4*0)+(3*5)+(2*1)+(1*9)=169
169 % 10 = 9
So 765305-19-9 is a valid CAS Registry Number.