219745-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219745-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,7,4 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 219745-17:
(8*2)+(7*1)+(6*9)+(5*7)+(4*4)+(3*5)+(2*1)+(1*7)=152
152 % 10 = 2
So 219745-17-2 is a valid CAS Registry Number.