202580-86-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202580-86-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,5,8 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 202580-86:
(8*2)+(7*0)+(6*2)+(5*5)+(4*8)+(3*0)+(2*8)+(1*6)=107
107 % 10 = 7
So 202580-86-7 is a valid CAS Registry Number.