Pyrazine-2, 3-Dicarboxylic Anhydride 4744-50-7 Assay 99.02% White Powder¹

Product Description Packaging & Shipping  Our AdvantagesHangzhou Jinlan Pharm-Drugs Technology Co. Ltd.(JL Pharm) is an advanced pharmaceutical corporation with  a laboratory of 1200 square meters in Nanjing city, and cooperative GMP production plants in Beljing, Jiangsu, Zhejiang, Jiangxi, Chengdrand Shandong.We can provide both CDMO technology research and development services, and a ful range of laboratory R&D and production services for raw materials and pharmaceutical intermediates to globapharmaceutical companies during which synthetic route research and development, process reearch and development and optimization, scale-up production, domestic and foreign drug registration, and industrial equipment selection, automatic control system and technical process packages.Product Name:    2,3-Pyrazinecarboxylic anhydride Synonyms:    PYRAZINE-2,3-DICARBOXYLIC ANHYDRIDE;2,3-Py Razinedica boxylic Anbyd Yide;2,3-PYRAZINEDICARBOXYLIC ANHYDRIDE;2,3-PYRAZINECARBOXYLIC ANHYDRIDE;2,3-PYRAZINEDICARBOXLIC ANHYDRIDE;2,3-PYRAZINEDICARBOXYLICANHYDRATE;FURO[3,4-B]PYRAZINE-5,7-DIONECAS:    4744-50-7MF:    C6H2N2O3MW:    150.09EINECS:    225-260-4Product Categories:    Pesticide intermediates;GLYCINESCAFFOLD;Fused Ring SystemsMol File:    4744-50-7.molMelting point     210 °C (dec.)(lit.)Boiling point     357.3±22.0 °C(Predicted)density     1.686±0.06 g/cm3(Predicted)storage temp.     Inert atmosphere,Room Temperaturesolubility     Actonitrile (Slightly), DMSOpka    -3.43±0.20(Predicted)form     Solidcolor     White to light brown crystalline powderLogP    -0.900 (est)CAS DataBase Reference    4744-50-7(CAS DataBase Reference)Hazard Codes     XiRisk Statements     36/37/38Safety Statements     26-36WGK Germany     3Hazard Note     IrritantHS Code     293499902,3-Pyrazinecarboxylic anhydride Usage And SynthesisUses    2,?3-?Pyrazinedicarboxylic Anhydride is a reagent used in the synthesis of highly potent and selective abietane type diterpenoid amides.2,3-Pyrazinecarboxylic anhydride Preparation Products And Raw materialsRaw materials    o-Phenylenediamine-->Glyoxal-->QuinoxalinePreparation Products    2,3-Pyridinedicarboxylic anhydride-->6-methyl-5H,6H,7H,8H-pyrazino[2,3-d]pyridazine-5,8-dione-->5,8-dichloropyrazino[2,3-d]pyridazine Assay(HPLC)≥98%99.02%Water(Loss on drying) ≤0.5%0.05%2,3-Pyrazinedicarboxylic acid≤1%0.55%2-Pyrazinecarboxylic acid≤1%0.43%TOtal impurity≤4%0.97%

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