1700-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1700-28-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,0 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1700-28:
(6*1)+(5*7)+(4*0)+(3*0)+(2*2)+(1*8)=53
53 % 10 = 3
So 1700-28-3 is a valid CAS Registry Number.