143591-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143591-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,9 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143591-09:
(8*1)+(7*4)+(6*3)+(5*5)+(4*9)+(3*1)+(2*0)+(1*9)=127
127 % 10 = 7
So 143591-09-7 is a valid CAS Registry Number.