173662-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173662-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,6,6 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 173662-70:
(8*1)+(7*7)+(6*3)+(5*6)+(4*6)+(3*2)+(2*7)+(1*0)=149
149 % 10 = 9
So 173662-70-9 is a valid CAS Registry Number.