265664-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 265664-19-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,5,6,6 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 265664-19:
(8*2)+(7*6)+(6*5)+(5*6)+(4*6)+(3*4)+(2*1)+(1*9)=165
165 % 10 = 5
So 265664-19-5 is a valid CAS Registry Number.