1030520-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1030520-54-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,0,5,2 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1030520-54:
(9*1)+(8*0)+(7*3)+(6*0)+(5*5)+(4*2)+(3*0)+(2*5)+(1*4)=77
77 % 10 = 7
So 1030520-54-7 is a valid CAS Registry Number.