20753-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20753-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,5 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20753-85:
(7*2)+(6*0)+(5*7)+(4*5)+(3*3)+(2*8)+(1*5)=99
99 % 10 = 9
So 20753-85-9 is a valid CAS Registry Number.