740838-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 740838-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,8,3 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 740838-70:
(8*7)+(7*4)+(6*0)+(5*8)+(4*3)+(3*8)+(2*7)+(1*0)=174
174 % 10 = 4
So 740838-70-4 is a valid CAS Registry Number.