66957-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66957-27-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,5 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66957-27:
(7*6)+(6*6)+(5*9)+(4*5)+(3*7)+(2*2)+(1*7)=175
175 % 10 = 5
So 66957-27-5 is a valid CAS Registry Number.