58371-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58371-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,3,7 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 58371-21:
(7*5)+(6*8)+(5*3)+(4*7)+(3*1)+(2*2)+(1*1)=134
134 % 10 = 4
So 58371-21-4 is a valid CAS Registry Number.