90891-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90891-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,9 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90891-87:
(7*9)+(6*0)+(5*8)+(4*9)+(3*1)+(2*8)+(1*7)=165
165 % 10 = 5
So 90891-87-5 is a valid CAS Registry Number.