123400-38-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123400-38-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,0 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123400-38:
(8*1)+(7*2)+(6*3)+(5*4)+(4*0)+(3*0)+(2*3)+(1*8)=74
74 % 10 = 4
So 123400-38-4 is a valid CAS Registry Number.