68761-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68761-09-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,7,6 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68761-09:
(7*6)+(6*8)+(5*7)+(4*6)+(3*1)+(2*0)+(1*9)=161
161 % 10 = 1
So 68761-09-1 is a valid CAS Registry Number.