1334159-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1334159-20-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,1,5 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1334159-20:
(9*1)+(8*3)+(7*3)+(6*4)+(5*1)+(4*5)+(3*9)+(2*2)+(1*0)=134
134 % 10 = 4
So 1334159-20-4 is a valid CAS Registry Number.