Characterization of the Products Derived from the Nitration of 1,5aDihydroxyanthraquinone (anthrarufin)and 1,8-Dihydroxyanthraquinone (Chysazin) (Record no. 49779)

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control field MX-MdCICY
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control field 20250625160135.0
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Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-15599
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
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245 10 - TITLE STATEMENT
Title Characterization of the Products Derived from the Nitration of 1,5aDihydroxyanthraquinone (anthrarufin)and 1,8-Dihydroxyanthraquinone (Chysazin)
490 0# - SERIES STATEMENT
Volume/sequential designation Dyes and Pigments, 12, p.145-155, 1990
520 3# - SUMMARY, ETC.
Summary, etc. When 2,5_djhydroxyunthraquinone (AnthraruJn)and I,8-dihydroxyanthra-quinone (Chrysazin)were nitrated using a mixture of concentrated sulfuric and nitric acids in the presence of boric acidat IO-2S"C, three major products formed in each reu~tion. The products were separated by ions-pressure column chromatography and identified by ' H-NMR andmass spectrometr~c analyses in tandem. The products identified result from the mono-, di- and tetranitration of these dihydroxya~thraqainones.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ukponmwan, D.0.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Freeman, H.S.
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Uniform Resource Identifier <a href="https://drive.google.com/file/d/1bM710BEvAGHXKLn5JxbCpErSGNg7SHJK/view?usp=drivesdk">https://drive.google.com/file/d/1bM710BEvAGHXKLn5JxbCpErSGNg7SHJK/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-15599 25.06.2025 25.06.2025 Documentos solicitados