502761-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 502761-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,2,7,6 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 502761-39:
(8*5)+(7*0)+(6*2)+(5*7)+(4*6)+(3*1)+(2*3)+(1*9)=129
129 % 10 = 9
So 502761-39-9 is a valid CAS Registry Number.