WASHINGTON, DC 20549

                                    FORM 8-K

                             CURRENT REPORT PURSUANT
                          TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

      Date of Report (Date of earliest event reported): SEPTEMBER 27, 2006

                                Aceto Corporation
             (Exact name of registrant as specified in its charter)

                                    New York
                 (State or Other Jurisdiction of Incorporation)

               000-4217                                 11-1720520
       (Commission File Number)             (IRS Employer Identification Number)

            One Hollow Lane, Suite 201, Lake Success, New York 11042
                    (Address of Principal Executive Offices)

                                 (516) 627-6000
              (Registrant's Telephone Number, Including Area Code)

          (Former Name or Former Address, if Changed Since Last Report)

Indicate by check mark if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following

           Written communications pursuant to Rule 425 under the Securities Act
     ----- (17 CFR 230.425)

           Soliciting material pursuant to Rule 14a-12 under the Exchange Act
     ----- (17 CFR 240.14-12)

           Pre-commencement communications pursuant to Rule 14d-2(b) under the
     ----- Exchange Act (17CFR 240.14d-2(b))

           Pre-commencement communications pursuant to Rule 13-e-4(c) under the
     ----- Exchange Act (17 CFR 240.13e-4(c))

Item 8.01      Other Events.

On September 27, 2006, Aceto Corporation, a New York corporation (the
"Registrant"), issued the attached press release that included updated
information regarding its initiative to provide vaccines for companion animals.
A copy of the press release is attached as Exhibit 99.1 to this Report on Form
8-K. The information contained in the press release is being furnished to the
Commission and shall not be deemed incorporated by reference into any of the
Registrant's registration statements or other filings with the Commission.

Item 9.01      Financial Statements and Exhibits.

(c) Exhibits

Exhibit 99.1   Press Release issued by Aceto Corporation dated September 27,


        Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the Registrant has duly caused this Report to be signed on its behalf
by the undersigned hereunto duly authorized.

                                            ACETO CORPORATION

Dated:  September 27, 2006                  By: /s/ Leonard S. Schwartz
                                            Leonard S. Schwartz
                                            Chairman, CEO and President

                                  EXHIBIT INDEX

Exhibit No.            Exhibits.
-----------            ---------

   99.1                Press Release issued by Aceto Corporation dated September
                       27, 2006