17763-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17763-89-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,6 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17763-89:
(7*1)+(6*7)+(5*7)+(4*6)+(3*3)+(2*8)+(1*9)=142
142 % 10 = 2
So 17763-89-2 is a valid CAS Registry Number.