23809-85-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23809-85-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,0 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23809-85:
(7*2)+(6*3)+(5*8)+(4*0)+(3*9)+(2*8)+(1*5)=120
120 % 10 = 0
So 23809-85-0 is a valid CAS Registry Number.