501015-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 501015-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,0,1 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 501015-54:
(8*5)+(7*0)+(6*1)+(5*0)+(4*1)+(3*5)+(2*5)+(1*4)=79
79 % 10 = 9
So 501015-54-9 is a valid CAS Registry Number.