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BIOTIN. III. 2-(δ-CARBOXYBUTYL) THIOPHANE-3,4-DICARBOXYLIC ACID 1

✍ Scribed by BROWN, GEORGE BOSWORTH; ARMSTRONG, MARVIN D.; MOYER, A. W.; ANSLOW, WILLIAM P.; BAKER, B. R.; QUERRY, MERLE V.; BERNSTEIN, SEYMOUR; SAFIR, S. R.

Book ID
126877068
Publisher
American Chemical Society
Year
1947
Tongue
English
Weight
469 KB
Volume
12
Category
Article
ISSN
0022-3263

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2,3,5,6-Tetrachlorobenzene-1,4-dicarboxy
2,3,5,6-Tetrachlorobenzene-1,4-dicarboxylic acid
✍ Chen, Qun ;Xie, Yingmei ;Li, Chao ;He, Mingyang ;Chen, Shengchun 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 548 KB

The title compound, C 8 H 2 Cl 4 O 4 , was synthesized by the reaction of 2,3,5,6-tetrachlorobenzene-1,4-dicarbonitrile and sulfuric acid. The molecule is located across an inversion center. The carboxyl group is tilted with respect to the benzene ring by an angle of 72.42 (7) . Intermolecular O-HÁ