1519-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1519-09-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,1 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1519-09:
(6*1)+(5*5)+(4*1)+(3*9)+(2*0)+(1*9)=71
71 % 10 = 1
So 1519-09-1 is a valid CAS Registry Number.