355809-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 355809-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,5,8,0 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 355809-53:
(8*3)+(7*5)+(6*5)+(5*8)+(4*0)+(3*9)+(2*5)+(1*3)=169
169 % 10 = 9
So 355809-53-9 is a valid CAS Registry Number.