143099-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143099-91-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,9 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143099-91:
(8*1)+(7*4)+(6*3)+(5*0)+(4*9)+(3*9)+(2*9)+(1*1)=136
136 % 10 = 6
So 143099-91-6 is a valid CAS Registry Number.