19281-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19281-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,8 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19281-09:
(7*1)+(6*9)+(5*2)+(4*8)+(3*1)+(2*0)+(1*9)=115
115 % 10 = 5
So 19281-09-5 is a valid CAS Registry Number.