58521-59-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58521-59-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,5,2 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 58521-59:
(7*5)+(6*8)+(5*5)+(4*2)+(3*1)+(2*5)+(1*9)=138
138 % 10 = 8
So 58521-59-8 is a valid CAS Registry Number.