501917-82-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 501917-82-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,9,1 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 501917-82:
(8*5)+(7*0)+(6*1)+(5*9)+(4*1)+(3*7)+(2*8)+(1*2)=134
134 % 10 = 4
So 501917-82-4 is a valid CAS Registry Number.