3547-42-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3547-42-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,4 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3547-42:
(6*3)+(5*5)+(4*4)+(3*7)+(2*4)+(1*2)=90
90 % 10 = 0
So 3547-42-0 is a valid CAS Registry Number.