93543-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93543-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,5,4 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 93543-18:
(7*9)+(6*3)+(5*5)+(4*4)+(3*3)+(2*1)+(1*8)=141
141 % 10 = 1
So 93543-18-1 is a valid CAS Registry Number.