1199809-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1199809-76-1 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, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1199809-76:
(9*1)+(8*1)+(7*9)+(6*9)+(5*8)+(4*0)+(3*9)+(2*7)+(1*6)=221
221 % 10 = 1
So 1199809-76-1 is a valid CAS Registry Number.