57981-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57981-24-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,8 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57981-24:
(7*5)+(6*7)+(5*9)+(4*8)+(3*1)+(2*2)+(1*4)=165
165 % 10 = 5
So 57981-24-5 is a valid CAS Registry Number.