73866-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73866-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,6 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73866-80:
(7*7)+(6*3)+(5*8)+(4*6)+(3*6)+(2*8)+(1*0)=165
165 % 10 = 5
So 73866-80-5 is a valid CAS Registry Number.