19547-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19547-30-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,4 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19547-30:
(7*1)+(6*9)+(5*5)+(4*4)+(3*7)+(2*3)+(1*0)=129
129 % 10 = 9
So 19547-30-9 is a valid CAS Registry Number.