258529-66-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258529-66-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,5,2 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 258529-66:
(8*2)+(7*5)+(6*8)+(5*5)+(4*2)+(3*9)+(2*6)+(1*6)=177
177 % 10 = 7
So 258529-66-7 is a valid CAS Registry Number.