666712-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666712-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,7,1 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 666712-05:
(8*6)+(7*6)+(6*6)+(5*7)+(4*1)+(3*2)+(2*0)+(1*5)=176
176 % 10 = 6
So 666712-05-6 is a valid CAS Registry Number.