ChemicalBook >?? ???? >2,3-????????? ???????
2,3-????????? ???????
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2,3-????????? ??????? ??
- ???
- 210 °C (dec.)(lit.)
- ?? ?
- 357.3±22.0 °C(Predicted)
- ??
- 1.686±0.06 g/cm3(Predicted)
- ?? ??
- Inert atmosphere,Room Temperature
- ???
- ?????(?? ???), DMSO
- ??? ??
- ??
- ??? ??
- ??? ??
- ?? ?? (pKa)
- -3.43±0.20(Predicted)
- ??
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- InChI
- InChI=1S/C6H2N2O3/c9-5-3-4(6(10)11-5)8-2-1-7-3/h1-2H
- InChIKey
- AWJWCTOOIBYHON-UHFFFAOYSA-N
- SMILES
- C12C(=O)OC(=O)C1=NC=CN=2
- LogP
- -0.900 (est)
- CAS ??????
- 4744-50-7(CAS DataBase Reference)
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- ?? ? ???? ?? (GHS)
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2,3-????????? ??????? C??? ??, ??, ??
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2,?3-?Pyrazinedicarboxylic Anhydride is a reagent used in the synthesis of highly potent and selective abietane type diterpenoid amides.Synthesis
Pyrazine-2,3-dicarboxylic acid (4.0 g, 23.8 mmol) was dissolved in acetic anhydride (30 mL).The reaction mixture was refluxed for one hour, and subsequently cooled down to 0 °C in ice bath.The obtained crystals of pyrazine-2,3-dicarboxylic anhydride were filtered off (yield 70%).
2,3-????????? ??????? ?? ?? ? ???
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2,3-????????? ??????? ?? ??
???( 341)?? ??
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2,3-????????? ??????? ?? ??:
????? ??? ??? ??? ????? 2,3-????????? ?????????????? ??????? 2,3-????????? ???????
Pyrazine
Sulfachoropyrazine sodium
Glipizide
RP 48497 (Eszopiclone Impurity C)
1-Piperazinecarboxylicacid,4-methyl-,ethylester(6CI,9CI)
N,N'-Dimethylpiperazine
Deschloro-Zopiclone
N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide
Zopiclone Impurity 3
Zopiclone Impurity 18
Zopiclone Impurity 10