665014-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 665014-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,5,0,1 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 665014-87:
(8*6)+(7*6)+(6*5)+(5*0)+(4*1)+(3*4)+(2*8)+(1*7)=159
159 % 10 = 9
So 665014-87-9 is a valid CAS Registry Number.