1334309-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1334309-65-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,3,0 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1334309-65:
(9*1)+(8*3)+(7*3)+(6*4)+(5*3)+(4*0)+(3*9)+(2*6)+(1*5)=137
137 % 10 = 7
So 1334309-65-7 is a valid CAS Registry Number.