1273809-17-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1273809-17-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,3,8,0 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1273809-17:
(9*1)+(8*2)+(7*7)+(6*3)+(5*8)+(4*0)+(3*9)+(2*1)+(1*7)=168
168 % 10 = 8
So 1273809-17-8 is a valid CAS Registry Number.