16958-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16958-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,5 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16958-45:
(7*1)+(6*6)+(5*9)+(4*5)+(3*8)+(2*4)+(1*5)=145
145 % 10 = 5
So 16958-45-5 is a valid CAS Registry Number.