19307-71-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19307-71-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,3,0 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19307-71:
(7*1)+(6*9)+(5*3)+(4*0)+(3*7)+(2*7)+(1*1)=112
112 % 10 = 2
So 19307-71-2 is a valid CAS Registry Number.