339308-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 339308-56-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,9,3,0 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 339308-56:
(8*3)+(7*3)+(6*9)+(5*3)+(4*0)+(3*8)+(2*5)+(1*6)=154
154 % 10 = 4
So 339308-56-4 is a valid CAS Registry Number.