17705-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17705-63-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,0 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17705-63:
(7*1)+(6*7)+(5*7)+(4*0)+(3*5)+(2*6)+(1*3)=114
114 % 10 = 4
So 17705-63-4 is a valid CAS Registry Number.