306319-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 306319-05-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,6,3,1 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 306319-05:
(8*3)+(7*0)+(6*6)+(5*3)+(4*1)+(3*9)+(2*0)+(1*5)=111
111 % 10 = 1
So 306319-05-1 is a valid CAS Registry Number.