ChemicalBook >?? ???? >2,3-????????? ???????
2,3-????????? ???????
|
|
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)
- ??
- ?? ?? ?? ??? ??? ??
- 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)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
????(GHS): |
![]() |
||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
?? ?: | Warning | ||||||||||||||||||||||||||||
??·?? ??: |
|
||||||||||||||||||||||||||||
??????: |
|
2,3-????????? ??????? C??? ??, ??, ??
??
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-????????? ??????? ?? ?? ? ???
???
?? ??
2,3-????????? ??????? ?? ??
???( 341)?? ??
??? | ?? | ??? | ?? | ?? ? | ?? |
---|---|---|---|---|---|
HUARONG(GUANGDONG) PHARMACEUTICAL CO.,LTD | +86-19925801629 |
eric@huarongpharma.com | China | 253 | 58 |
Shannxi Bosen Medical Technology Co.,Ltd | 15591899801 |
chenxuan@sxbsylkjwwgc999.onexmail.com | China | 3 | 58 |
Capot Chemical Co.,Ltd. | +8613336195806 |
sales@capot.com | China | 29731 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 |
info@dakenam.com | China | 12835 | 58 |
Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 |
sales01@cooperate-pharm.com | CHINA | 1803 | 55 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21622 | 55 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 33024 | 60 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29855 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28172 | 58 |
Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 |
sales@finerchem.com | China | 2955 | 58 |
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