1918-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1918-54-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,1 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1918-54:
(6*1)+(5*9)+(4*1)+(3*8)+(2*5)+(1*4)=93
93 % 10 = 3
So 1918-54-3 is a valid CAS Registry Number.