17755-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17755-31-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,5 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17755-31:
(7*1)+(6*7)+(5*7)+(4*5)+(3*5)+(2*3)+(1*1)=126
126 % 10 = 6
So 17755-31-6 is a valid CAS Registry Number.