134305-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134305-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,0 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 134305-16:
(8*1)+(7*3)+(6*4)+(5*3)+(4*0)+(3*5)+(2*1)+(1*6)=91
91 % 10 = 1
So 134305-16-1 is a valid CAS Registry Number.