Direct Black 19
      
      
      	
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      			Post Date:Sep 03,2013
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      			Expiry Date:Mar 02,2014
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      			Detailed Description:Cas No. :6428-31-5
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      			CAS Registry Number:6428-31-5
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      			Synonyms:;C.I. 35255;C.I. Direct Black 19;C.I. Direct Black 19 (VAN);C.I. Direct Black 19, disodium salt;Direct Fast Black G;C.I.Direct Black 19;disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate;(3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid;Direct Black G;
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      			Molecular Formula:C34H27N13Na2S2O7
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      			Molecular Weight:839.77
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      			Molecular Structure:  
 
      
      	
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      			Company:Shaoxing Wellgain Import and Export co., ltd.
    					    [ China ]
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