19967-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19967-45-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,6 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19967-45:
(7*1)+(6*9)+(5*9)+(4*6)+(3*7)+(2*4)+(1*5)=164
164 % 10 = 4
So 19967-45-4 is a valid CAS Registry Number.