523988-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 523988-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,3,9,8 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 523988-18:
(8*5)+(7*2)+(6*3)+(5*9)+(4*8)+(3*8)+(2*1)+(1*8)=183
183 % 10 = 3
So 523988-18-3 is a valid CAS Registry Number.