1199809-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1199809-28-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,9,8,0 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1199809-28:
(9*1)+(8*1)+(7*9)+(6*9)+(5*8)+(4*0)+(3*9)+(2*2)+(1*8)=213
213 % 10 = 3
So 1199809-28-3 is a valid CAS Registry Number.