20172-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20172-49-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,7 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20172-49:
(7*2)+(6*0)+(5*1)+(4*7)+(3*2)+(2*4)+(1*9)=70
70 % 10 = 0
So 20172-49-0 is a valid CAS Registry Number.