77876-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77876-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,7 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77876-28:
(7*7)+(6*7)+(5*8)+(4*7)+(3*6)+(2*2)+(1*8)=189
189 % 10 = 9
So 77876-28-9 is a valid CAS Registry Number.