726139-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 726139-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,6,1,3 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 726139-90:
(8*7)+(7*2)+(6*6)+(5*1)+(4*3)+(3*9)+(2*9)+(1*0)=168
168 % 10 = 8
So 726139-90-8 is a valid CAS Registry Number.