-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000890163-07-000459.txt : 20070726
<SEC-HEADER>0000890163-07-000459.hdr.sgml : 20070726
<ACCEPTANCE-DATETIME>20070726170746
ACCESSION NUMBER:		0000890163-07-000459
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070725
FILED AS OF DATE:		20070726
DATE AS OF CHANGE:		20070726

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PIPEX PHARMACEUTICALS, INC.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3985 RESEARCH PARK DRIVE
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48108
		BUSINESS PHONE:		734-332-7800

	MAIL ADDRESS:	
		STREET 1:		3985 RESEARCH PARK DRIVE
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48108

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19970730

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD MEDICAL TECHNOLOGIES INC
		DATE OF NAME CHANGE:	19940606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KANZER STEVE H
		CENTRAL INDEX KEY:			0001076653

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12584
		FILM NUMBER:		071003888

	BUSINESS ADDRESS:	
		STREET 1:		210 CENTRAL PARK SOUTH
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>s11-7573_ex.xml
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2007-07-25</periodOfReport>

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    <issuer>
        <issuerCik>0000894158</issuerCik>
        <issuerName>PIPEX PHARMACEUTICALS, INC.</issuerName>
        <issuerTradingSymbol>PP</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>KANZER STEVE H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PIPEX</rptOwnerStreet1>
            <rptOwnerStreet2>3930 VARSITY DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ANN ARBOR</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO</officerTitle>
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                <transactionPricePerShare>
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        <nonDerivativeTransaction>
            <securityTitle>
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            <transactionDate>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7086379</value>
                </transactionShares>
                <transactionPricePerShare>
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            <ownershipNature>
                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
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                </natureOfOwnership>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
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            <conversionOrExercisePrice>
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            </conversionOrExercisePrice>
            <transactionDate>
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                <value>2006-10-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-10-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>832606</value>
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            </underlyingSecurity>
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            <ownershipNature>
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        <derivativeTransaction>
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            </securityTitle>
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            </conversionOrExercisePrice>
            <transactionDate>
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            </transactionDate>
            <transactionCoding>
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                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            </exerciseDate>
            <expirationDate>
                <value>2015-05-30</value>
            </expirationDate>
            <underlyingSecurity>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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                </transactionShares>
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                <transactionAcquiredDisposedCode>
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            <securityTitle>
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                    <footnoteId id="F6"/>
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                <transactionAcquiredDisposedCode>
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    <footnotes>
        <footnote id="F1">Received in exchange for shares of Pipex Therapeutics, Inc. common stock upon the October 31, 2006 merger of Pipex
 Therapeutics, Inc. and a wholly owned subsidiary of the Registrant. Mr. Kanzer is the managing member of Pharmainvestors,
 LLC, the managing member of Accredited Venture Capital, LLC.</footnote>
        <footnote id="F2">Received in exchange for warrants of Pipex Therapeutics, Inc. upon the October 31, 2006 merger of Pipex Therapeutics, Inc.
and a wholly owned subsidiary of the Registrant. Mr. Kanzer is the managing member of Pharmainvestors, LLC, the managing
 member of Accredited Venture Capital, LLC.</footnote>
        <footnote id="F3">Received in exchange for warrants of Effective Pharmaceuticals, Inc. upon the January 5, 2007 merger of Effective
 Pharmaceuticals, Inc. and a wholly owned subsidiary of the Registrant. Mr. Kanzer is the managing member of Pharmainvestors,
 LLC, the managing member of Accredited Venture Capital, LLC.</footnote>
        <footnote id="F4">Received in connection with placement agent services performed on behalf of Pipex Pharmaceuticals, Inc. Mr. Kanzer is the
 managing member of Pharmainvestors, LLC, the managing member of Accredited Venture Capital, LLC.</footnote>
        <footnote id="F5">One third of these stock options vested on the grant date and the remaining options will vest in equal installments on the
 first and second anniversaries of the grant date.</footnote>
        <footnote id="F6">Received in exchange for options of Pipex Therapeutics, Inc. upon the October 31, 2006 merger of Pipex Therapeutics, Inc. and
 a wholly owned subsidiary of the Registrant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Steve H. Kanzer</signatureName>
        <signatureDate>2007-07-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
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