103357-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103357-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,5 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 103357-81:
(8*1)+(7*0)+(6*3)+(5*3)+(4*5)+(3*7)+(2*8)+(1*1)=99
99 % 10 = 9
So 103357-81-9 is a valid CAS Registry Number.