165960-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165960-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,9,6 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 165960-72:
(8*1)+(7*6)+(6*5)+(5*9)+(4*6)+(3*0)+(2*7)+(1*2)=165
165 % 10 = 5
So 165960-72-5 is a valid CAS Registry Number.