40512-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40512-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,1 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40512-90:
(7*4)+(6*0)+(5*5)+(4*1)+(3*2)+(2*9)+(1*0)=81
81 % 10 = 1
So 40512-90-1 is a valid CAS Registry Number.