66335-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66335-80-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,3 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66335-80:
(7*6)+(6*6)+(5*3)+(4*3)+(3*5)+(2*8)+(1*0)=136
136 % 10 = 6
So 66335-80-6 is a valid CAS Registry Number.