501693-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 501693-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,6,9 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 501693-50:
(8*5)+(7*0)+(6*1)+(5*6)+(4*9)+(3*3)+(2*5)+(1*0)=131
131 % 10 = 1
So 501693-50-1 is a valid CAS Registry Number.