840-76-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 840-76-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 840-76:
(5*8)+(4*4)+(3*0)+(2*7)+(1*6)=76
76 % 10 = 6
So 840-76-6 is a valid CAS Registry Number.