287728-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287728-32-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,7,2 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 287728-32:
(8*2)+(7*8)+(6*7)+(5*7)+(4*2)+(3*8)+(2*3)+(1*2)=189
189 % 10 = 9
So 287728-32-9 is a valid CAS Registry Number.