17478-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17478-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,4,7 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17478-21:
(7*1)+(6*7)+(5*4)+(4*7)+(3*8)+(2*2)+(1*1)=126
126 % 10 = 6
So 17478-21-6 is a valid CAS Registry Number.