343216-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343216-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,2,1 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 343216-53:
(8*3)+(7*4)+(6*3)+(5*2)+(4*1)+(3*6)+(2*5)+(1*3)=115
115 % 10 = 5
So 343216-53-5 is a valid CAS Registry Number.