24742-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24742-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,7,4 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 24742-70:
(7*2)+(6*4)+(5*7)+(4*4)+(3*2)+(2*7)+(1*0)=109
109 % 10 = 9
So 24742-70-9 is a valid CAS Registry Number.