21101-86-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21101-86-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,0 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21101-86:
(7*2)+(6*1)+(5*1)+(4*0)+(3*1)+(2*8)+(1*6)=50
50 % 10 = 0
So 21101-86-0 is a valid CAS Registry Number.