66879-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66879-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,7 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66879-54:
(7*6)+(6*6)+(5*8)+(4*7)+(3*9)+(2*5)+(1*4)=187
187 % 10 = 7
So 66879-54-7 is a valid CAS Registry Number.