21725-86-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21725-86-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,2 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21725-86:
(7*2)+(6*1)+(5*7)+(4*2)+(3*5)+(2*8)+(1*6)=100
100 % 10 = 0
So 21725-86-0 is a valid CAS Registry Number.