19685-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19685-45-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,8 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19685-45:
(7*1)+(6*9)+(5*6)+(4*8)+(3*5)+(2*4)+(1*5)=151
151 % 10 = 1
So 19685-45-1 is a valid CAS Registry Number.