1542-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1542-18-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,4 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1542-18:
(6*1)+(5*5)+(4*4)+(3*2)+(2*1)+(1*8)=63
63 % 10 = 3
So 1542-18-3 is a valid CAS Registry Number.