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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SECURITIES
      AND EXCHANGE COMMISSION</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>WASHINGTON,
      D.C. 20549</strong></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>FORM
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      EXCHANGE ACT OF 1934</strong></font></div>
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            <td width="3%">&#160;</td>
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            <td width="3%">&#160;</td>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
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      the
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      satisfy the filing obligation of the registrant under any of the following
      provisions:</font></div>
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</font>Written
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</font>Soliciting
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</font>Pre-commencement
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</font>Pre-commencement
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    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>(a)</strong></font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Previous
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(1)</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(i)</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Effective
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      years did not contain an adverse opinion or a disclaimer of opinion, and was
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      expressed substantial doubt about the Registrant&#8217;s ability to continue as a
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      period through July 7, 2005, there were no disagreements on any matter of
      accounting principles or practices, financial statement disclosure, or auditing
      scope or procedures, which disagreements if not resolved to their satisfaction
      would have caused them to make reference in connection with their opinion to
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      period through July 7, 2005, Causey Demgen did not advise the Registrant of
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      Registrant requested Causey Demgen to furnish a letter addressed to the SEC,
      stating whether it agrees with the statements made by the Registrant and, if
      not, stating the respects in which it does not agree.</font></div>
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      July
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      Bradford &amp; Company</u></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#8221;)
      as its
      principal accountant to audit the Registrant&#8217;s financial statements. The
      Registrant did not consult LL Bradford &amp; Company on any matters described in
      paragraph&#160;(a)(2)(i) or (ii) of Item 304 of Regulation S-K during the
      Registrant&#8217;s two most recent fiscal years or any subsequent interim period prior
      to engaging LL Bradford &amp; Company. </font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
      7. Exhibits</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td align="left" valign="top" width="24%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibit
                99.1</font></div>
            </td>
            <td align="left" valign="top" width="55%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Letter
                dated July 12, 2005, from Causey Demgen &amp; Moore,
                Inc.</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="24%">&#160;</td>
            <td align="left" valign="top" width="55%">&#160;</td>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br>&#160;</div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">
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      <div id="PN" style="PAGE-BREAK-AFTER: always">
        <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">2</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
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      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>SIGNATURES</strong></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
      duly caused this report to be signed on its behalf by the undersigned hereunto
      duly authorized.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td align="left" valign="top" width="40%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date:</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">July
                18, 2005</font></div>
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                INC.</strong></font></div>
            </td>
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            <td align="left" valign="top" width="40%">&#160;</td>
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            <td align="left" valign="top" width="40%" style="BORDER-BOTTOM: black thin solid">
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                David Norris</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font></div>
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            <td align="left" valign="top" width="40%">&#160;</td>
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{"company-data": {"conformed-name": "ENTROPIN INC", "cik": "0000837600", "assigned-sic": "2833", "irs-number": "841090424", "state-of-incorporation": "CO", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-29807", "film-number": "05958901"}, "business-address": {"street1": "45926 OASIS STREET", "street2": "SUITE 810", "city": "INDIO", "state": "CA", "zip": "92201", "phone": "8183402323"}, "mail-address": {"street1": "45926 OASIS STREET", "street2": "SUITE 810", "city": "INDIO", "state": "CA", "zip": "92201"}, "former-company": {"former-conformed-name": "VANDEN CAPITAL GROUP INC", "date-changed": "19920703"}}
SECURITIES
      AND EXCHANGE COMMISSION
WASHINGTON,
      D.C. 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): July 7, 2005
ENTROPIN,
      INC.
(Exact
      Name of Registrant as Specified in Charter)
Delaware
000-29807
68-0510827
(State
                or other jurisdiction
(Commission
(IRS
                Employer
of
                incorporation)
File
                Number)
Identification
                No.)
13314
                Lost Key Place, Bradenton, Florida
34202
(Address
                of principal executive offices)
(Zip
                code)
(941)
                388-9512
Registrant's
                telephone number, including area code
45926
      Oasis Street, Indio, California 92201
(Former
      Name or Former Address, If Changed Since Last Report)
Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions:
o
Written
      communications
      pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting
      material
      pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement
      communications pursuant to Rule 14d-2(b) under the Exchange
      Act (17 CFR 240.14d-2(b))
o
Pre-commencement
      communications pursuant to Rule 13e-4(c) under the Exchange
      Act (17 CFR 240.13e-4(c))
Item
      4.
Change
      in
      Registrant's Certifying Accountant
(a)
Previous
      Independent Accountants
(1)
(i)
Effective
      July 7, 2005, Entropin, Inc. (the "
Registrant
")
      dismissed Causey Demgen & Moore, Inc. ("
Causey
      Demgen
")
      as its
      independent certified public accountants.
(ii)
Causey
      Demgen's report on the Registrant's financial statements for the past two fiscal
      years did not contain an adverse opinion or a disclaimer of opinion, and was
      not
      qualified as to uncertainty, audit scope, or accounting principles; however,
      the
      report was modified to include an explanatory paragraph wherein Causey Demgen
      expressed substantial doubt about the Registrant's ability to continue as a
      going concern.
(iii)
The
      change of independent accountants was approved by the Registrant's Board of
      Directors on July 7, 2005.
(iv)
During
      the Registrant's most recent two fiscal years, as well as the subsequent interim
      period through July 7, 2005, there were no disagreements on any matter of
      accounting principles or practices, financial statement disclosure, or auditing
      scope or procedures, which disagreements if not resolved to their satisfaction
      would have caused them to make reference in connection with their opinion to
      the
      subject matter of the disagreement.
(v)
During
      the Registrant's most recent two fiscal years, as well as the subsequent interim
      period through July 7, 2005, Causey Demgen did not advise the Registrant of
      any
      of the matters identified in paragraph (a)(1)(v) of Item 304
      of
      Regulation S-K.
(vi)
The
      Registrant requested Causey Demgen to furnish a letter addressed to the SEC,
      stating whether it agrees with the statements made by the Registrant and, if
      not, stating the respects in which it does not agree.
(b)
New
      Independent Accountants
On
      July
      7, 2005, the Registrant engaged LL Bradford & Company, LLC ("
LL
      Bradford & Company
")
      as its
      principal accountant to audit the Registrant's financial statements. The
      Registrant did not consult LL Bradford & Company on any matters described in
      paragraph (a)(2)(i) or (ii) of Item 304 of Regulation S-K during the
      Registrant's two most recent fiscal years or any subsequent interim period prior
      to engaging LL Bradford & Company.
Item
      7. Exhibits
Exhibit
                99.1
Letter
                dated July 12, 2005, from Causey Demgen & Moore,
                Inc.
2
SIGNATURES
Pursuant
      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
      duly caused this report to be signed on its behalf by the undersigned hereunto
      duly authorized.
Date:
July
                18, 2005
ENTROPIN,
                INC.
By:
s/s/
                David Norris
Name:
David
                Norris
Its:
President
3