258336-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258336-20-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,3,3 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 258336-20:
(8*2)+(7*5)+(6*8)+(5*3)+(4*3)+(3*6)+(2*2)+(1*0)=148
148 % 10 = 8
So 258336-20-8 is a valid CAS Registry Number.