6117-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6117-40-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,1 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6117-40:
(6*6)+(5*1)+(4*1)+(3*7)+(2*4)+(1*0)=74
74 % 10 = 4
So 6117-40-4 is a valid CAS Registry Number.