1623120-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1623120-78-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,3,1,2 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1623120-78:
(9*1)+(8*6)+(7*2)+(6*3)+(5*1)+(4*2)+(3*0)+(2*7)+(1*8)=124
124 % 10 = 4
So 1623120-78-4 is a valid CAS Registry Number.