83100-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83100-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,1,0 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83100-50:
(7*8)+(6*3)+(5*1)+(4*0)+(3*0)+(2*5)+(1*0)=89
89 % 10 = 9
So 83100-50-9 is a valid CAS Registry Number.