40837-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40837-89-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,3 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40837-89:
(7*4)+(6*0)+(5*8)+(4*3)+(3*7)+(2*8)+(1*9)=126
126 % 10 = 6
So 40837-89-6 is a valid CAS Registry Number.