124143-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124143-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,1,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 124143-91:
(8*1)+(7*2)+(6*4)+(5*1)+(4*4)+(3*3)+(2*9)+(1*1)=95
95 % 10 = 5
So 124143-91-5 is a valid CAS Registry Number.