176665-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176665-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,6,6 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 176665-71:
(8*1)+(7*7)+(6*6)+(5*6)+(4*6)+(3*5)+(2*7)+(1*1)=177
177 % 10 = 7
So 176665-71-7 is a valid CAS Registry Number.