681465-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681465-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,4,6 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 681465-40:
(8*6)+(7*8)+(6*1)+(5*4)+(4*6)+(3*5)+(2*4)+(1*0)=177
177 % 10 = 7
So 681465-40-7 is a valid CAS Registry Number.