219788-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219788-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,7,8 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 219788-05:
(8*2)+(7*1)+(6*9)+(5*7)+(4*8)+(3*8)+(2*0)+(1*5)=173
173 % 10 = 3
So 219788-05-3 is a valid CAS Registry Number.