66929-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66929-90-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,2 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66929-90:
(7*6)+(6*6)+(5*9)+(4*2)+(3*9)+(2*9)+(1*0)=176
176 % 10 = 6
So 66929-90-6 is a valid CAS Registry Number.