165737-48-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165737-48-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,7,3 and 7 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 165737-48:
(8*1)+(7*6)+(6*5)+(5*7)+(4*3)+(3*7)+(2*4)+(1*8)=164
164 % 10 = 4
So 165737-48-4 is a valid CAS Registry Number.