100887-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100887-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,8,8 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 100887-20:
(8*1)+(7*0)+(6*0)+(5*8)+(4*8)+(3*7)+(2*2)+(1*0)=105
105 % 10 = 5
So 100887-20-5 is a valid CAS Registry Number.