280776-87-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 280776-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,0,7,7 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 280776-87:
(8*2)+(7*8)+(6*0)+(5*7)+(4*7)+(3*6)+(2*8)+(1*7)=176
176 % 10 = 6
So 280776-87-6 is a valid CAS Registry Number.