<SEC-DOCUMENT>0001144204-17-047782.txt : 20170913
<SEC-HEADER>0001144204-17-047782.hdr.sgml : 20170913
<ACCEPTANCE-DATETIME>20170913082057
ACCESSION NUMBER:		0001144204-17-047782
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20170913
DATE AS OF CHANGE:		20170913
EFFECTIVENESS DATE:		20170913

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Synthetic Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-294572
		FILM NUMBER:		171082251

	BUSINESS ADDRESS:	
		STREET 1:		617 DETROIT STREET, SUITE 100
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48104
		BUSINESS PHONE:		(734) 332-7800

	MAIL ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADEONA PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20081027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIPEX PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20061214

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19970730
</SEC-HEADER>
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        <cik>0000894158</cik>
        <entityName>Synthetic Biologics, Inc.</entityName>
        <issuerAddress>
            <street1>9605 MEDICAL CENTER DRIVE, SUITE 270</street1>
            <city>ROCKVILLE</city>
            <stateOrCountry>MD</stateOrCountry>
            <stateOrCountryDescription>MARYLAND</stateOrCountryDescription>
            <zipCode>20850</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(301) 417-4364</issuerPhoneNumber>
        <jurisdictionOfInc>NEVADA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
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            <previousName>ADEONA PHARMACEUTICALS, INC.</previousName>
            <previousName>PIPEX PHARMACEUTICALS, INC.</previousName>
            <previousName>SHEFFIELD PHARMACEUTICALS INC</previousName>
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                <firstName>Jeffrey</firstName>
                <lastName>Riley</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>9605 Medical Center Drive, Suite 270</street1>
                <city>Rockville</city>
                <stateOrCountry>MD</stateOrCountry>
                <stateOrCountryDescription>MARYLAND</stateOrCountryDescription>
                <zipCode>20850</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
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                <lastName>Shallcross</lastName>
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                <city>Rockville</city>
                <stateOrCountry>MD</stateOrCountry>
                <stateOrCountryDescription>MARYLAND</stateOrCountryDescription>
                <zipCode>20850</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <lastName>Kraws</lastName>
            </relatedPersonName>
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                <street1>9605 Medical Center Drive, Suite 270</street1>
                <city>Rockville</city>
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                <zipCode>20850</zipCode>
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                <city>Rockville</city>
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                <zipCode>20850</zipCode>
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                <city>Rockville</city>
                <stateOrCountry>MD</stateOrCountry>
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                <zipCode>20850</zipCode>
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                <lastName>Sliman</lastName>
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                <city>Rockville</city>
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                <zipCode>20850</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
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    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2017-09-11</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>12000000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>12000000</totalOfferingAmount>
            <totalAmountSold>12000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>1</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
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                <dollarAmount>0</dollarAmount>
            </salesCommissions>
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            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
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        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Synthetic Biologics, Inc.</issuerName>
                <signatureName>/s/ Steven Shallcross</signatureName>
                <nameOfSigner>Steven Shallcross</nameOfSigner>
                <signatureTitle>Chief Executive Officer</signatureTitle>
                <signatureDate>2017-09-13</signatureDate>
            </signature>
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</DOCUMENT>
</SEC-DOCUMENT>
