194423-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194423-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,4,2 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 194423-78:
(8*1)+(7*9)+(6*4)+(5*4)+(4*2)+(3*3)+(2*7)+(1*8)=154
154 % 10 = 4
So 194423-78-4 is a valid CAS Registry Number.