169751-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169751-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,5 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 169751-71:
(8*1)+(7*6)+(6*9)+(5*7)+(4*5)+(3*1)+(2*7)+(1*1)=177
177 % 10 = 7
So 169751-71-7 is a valid CAS Registry Number.