20727-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20727-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,2 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20727-93:
(7*2)+(6*0)+(5*7)+(4*2)+(3*7)+(2*9)+(1*3)=99
99 % 10 = 9
So 20727-93-9 is a valid CAS Registry Number.