40920-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40920-05-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,2 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40920-05:
(7*4)+(6*0)+(5*9)+(4*2)+(3*0)+(2*0)+(1*5)=86
86 % 10 = 6
So 40920-05-6 is a valid CAS Registry Number.