1209495-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1209495-09-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,9,4,9 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1209495-09:
(9*1)+(8*2)+(7*0)+(6*9)+(5*4)+(4*9)+(3*5)+(2*0)+(1*9)=159
159 % 10 = 9
So 1209495-09-9 is a valid CAS Registry Number.