40047-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40047-21-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,4 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40047-21:
(7*4)+(6*0)+(5*0)+(4*4)+(3*7)+(2*2)+(1*1)=70
70 % 10 = 0
So 40047-21-0 is a valid CAS Registry Number.