741681-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 741681-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,1,6,8 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 741681-40:
(8*7)+(7*4)+(6*1)+(5*6)+(4*8)+(3*1)+(2*4)+(1*0)=163
163 % 10 = 3
So 741681-40-3 is a valid CAS Registry Number.