1023504-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1023504-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,3,5,0 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1023504-75:
(9*1)+(8*0)+(7*2)+(6*3)+(5*5)+(4*0)+(3*4)+(2*7)+(1*5)=97
97 % 10 = 7
So 1023504-75-7 is a valid CAS Registry Number.