643014-05-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 643014-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,3,0,1 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 643014-05:
(8*6)+(7*4)+(6*3)+(5*0)+(4*1)+(3*4)+(2*0)+(1*5)=115
115 % 10 = 5
So 643014-05-5 is a valid CAS Registry Number.