100388-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100388-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,3,8 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 100388-20:
(8*1)+(7*0)+(6*0)+(5*3)+(4*8)+(3*8)+(2*2)+(1*0)=83
83 % 10 = 3
So 100388-20-3 is a valid CAS Registry Number.