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12年老厂2,3-吡嗪二羧酸吡嗪-2,3-二羧酸89-01-0 2,3-吡嗪二羧酸价格 南箭牌

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                                                                                                                                2,3-吡嗪二羧酸 基本信息                                    MSDS 用途与合成方法 2,3-吡嗪二羧酸价格(试剂级) 上下游产品信息                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    中文名称:                                    2,3-吡嗪二羧酸                                    中文同义词:                                    吡嗪-2,3-二羧酸;2,3-吡嗪二羧酸;吡嗪2、3二羧酸;对二氮杂苯-2,3-二羧酸;1,4-哒嗪-2,3-二羧酸;1,4-二氮杂苯邻二甲酸;2,3-哌嗪二羧酸;2,3-哌嗪二羧酸,98%                                    英文名称:                                    2,3-Pyrazinedicarboxylic acid                                    英文同义词:                                    PYRAZINE-2,3-DICARBOXYLIC ACID;RARECHEM AL BO 1311;IFLAB-BB F2124-0042;AKOS BBS-00001996;2,3-PYRAZINEDICARBOXYLIC ACID;2,3-dicarboxypyrazine;2,3-Pyrazinedcarboxylicacid;2,3-Pyrazinedicarboxylic                                    CAS号:                                    89-01-0                                    分子式:                                    C6H4N2O4                                    分子量:                                    168.11                                    EINECS号:                                    201-875-3                                    相关类别:                                    Carboxylic Acids;Pyrazines, Pyrimidines & Pyridazines;Pyrazine;Organic acids;Pyrazines;吡嗪类;Pyrazinecarboxylic Acid & Derivatives;Carboxylic Acids;Pyrazines, Pyrimidines & Pyridazines;Heterocycles;吡嗪类香料;香精与香料;Building Blocks;Heterocyclic Building Blocks;医药中间体;哌嗪;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks;Pesticide intermediates;杂环砌块;通用试剂;医药原料;中间体                                    Mol文件:                                    89-01-0.mol                                                                                                                                                                                                2,3-吡嗪二羧酸 性质                                                                                                                                                                                                                                                                                                                                                                                                            熔点                                     188 °C (dec.)(lit.)
                                        溶解度                                     soluble                                    水溶解性                                     soluble                                    Merck                                     14,7958                                    BRN                                     147982                                    CAS 数据库                                    89-01-0(CAS Database Reference)                                                                                                                                                            2,3-吡嗪二羧酸 用途与合成方法                                                                                                                                                                                                                                                                                            化学性质                                     含二分子结晶水者呈柱状结晶。 易溶于水,溶于甲醇、丙酮、乙酸乙酯,微溶于乙醇、乙醚、氯仿、苯及石油醚。                                    用途                                     该品为抗结核病药物吡嗪酰胺的中间体。                                    用途                                     用作合成吡嗪酰胺中间体 该品为抗结核病药物吡嗪酰胺的中间体。                                    生产方法                                     以苯并吡嗪为原料,经高锰酸钾氧化而得。先将水及苯并吡嗪投入反应锅中,于搅拌下将高锰酸钾均匀加入,温度保持在68-70℃保温2h,测终点。放置过夜,吸取上层清液,下层物加水搅拌,加热至80℃过滤,将上层清液及滤液以薄膜蒸发器浓缩,然后取出用盐酸中和至pH=2,析出吡嗪二羧酸单钾盐,冷却,25℃甩滤。将滤饼加入盐酸中,搅拌升温至全溶,于15℃以下冷却结晶,甩滤,以少许乙醇洗涤,甩干得结晶品。以苯并吡嗪计,收率为70%。
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