77823-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77823-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,2 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77823-74:
(7*7)+(6*7)+(5*8)+(4*2)+(3*3)+(2*7)+(1*4)=166
166 % 10 = 6
So 77823-74-6 is a valid CAS Registry Number.