27169-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27169-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,1,6 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27169-91:
(7*2)+(6*7)+(5*1)+(4*6)+(3*9)+(2*9)+(1*1)=131
131 % 10 = 1
So 27169-91-1 is a valid CAS Registry Number.