107400-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107400-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,4,0 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 107400-20:
(8*1)+(7*0)+(6*7)+(5*4)+(4*0)+(3*0)+(2*2)+(1*0)=74
74 % 10 = 4
So 107400-20-4 is a valid CAS Registry Number.