140209-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140209-90-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,2,0 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 140209-90:
(8*1)+(7*4)+(6*0)+(5*2)+(4*0)+(3*9)+(2*9)+(1*0)=91
91 % 10 = 1
So 140209-90-1 is a valid CAS Registry Number.