17953-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17953-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,5 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 17953-18:
(7*1)+(6*7)+(5*9)+(4*5)+(3*3)+(2*1)+(1*8)=133
133 % 10 = 3
So 17953-18-3 is a valid CAS Registry Number.