40646-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40646-34-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,6,4 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 40646-34:
(7*4)+(6*0)+(5*6)+(4*4)+(3*6)+(2*3)+(1*4)=102
102 % 10 = 2
So 40646-34-2 is a valid CAS Registry Number.