1024523-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1024523-21-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,4,5,2 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1024523-21:
(9*1)+(8*0)+(7*2)+(6*4)+(5*5)+(4*2)+(3*3)+(2*2)+(1*1)=94
94 % 10 = 4
So 1024523-21-4 is a valid CAS Registry Number.