135449-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135449-20-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,4,4 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 135449-20:
(8*1)+(7*3)+(6*5)+(5*4)+(4*4)+(3*9)+(2*2)+(1*0)=126
126 % 10 = 6
So 135449-20-6 is a valid CAS Registry Number.