5519-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5519-93-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,1 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5519-93:
(6*5)+(5*5)+(4*1)+(3*9)+(2*9)+(1*3)=107
107 % 10 = 7
So 5519-93-7 is a valid CAS Registry Number.