ChemicalBook > CAS DataBase List > 2,3-Pyrazinecarboxylic anhydride

2,3-Pyrazinecarboxylic anhydride

Product Name
2,3-Pyrazinecarboxylic anhydride
CAS No.
4744-50-7
Chemical Name
2,3-Pyrazinecarboxylic anhydride
Synonyms
FURO[3,4-B]PYRAZINE-5,7-DIONE;2,3-PYRAZINEDICARBOXYLIC ANHYDRIDE;PYRAZINE-2,3-DICARBOXYLIC ANHYDRIDE;Zopiclone Impurity 5;2,3-Pyrazine Dicarbo;pyrazine-2,3-dicarboxylic;furo[3,4-b]pyrazine-5,7-quinone;2,3-PYRAZINECARBOXYLIC ANHYDRIDE;2,3-PYRAZINEDICARBOXYLICANHYDRATE;2,3-PYRAZINEDICARBOXLIC ANHYDRIDE
CBNumber
CB3208656
Molecular Formula
C6H2N2O3
Formula Weight
150.09
MOL File
4744-50-7.mol
More
Less

2,3-Pyrazinecarboxylic anhydride Property

Melting 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 Temperature
solubility 
Actonitrile (Slightly), DMSO
form 
Solid
pka
-3.43±0.20(Predicted)
color 
White to light brown crystalline powder
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 DataBase Reference
4744-50-7(CAS DataBase Reference)
More
Less

Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
Hazard Note 
Irritant
HS Code 
29349990
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
405019
Product name
2,3-Pyrazinedicarboxylic anhydride
Purity
97%
Packaging
5g
Price
$46.8
Updated
2024/03/01
Sigma-Aldrich
Product number
405019
Product name
2,3-Pyrazinedicarboxylic anhydride
Purity
97%
Packaging
25g
Price
$402
Updated
2024/03/01
TRC
Product number
P840820
Product name
2,3-Pyrazinedicarboxylic anhydride
Packaging
10g
Price
$130
Updated
2021/12/16
Medical Isotopes, Inc.
Product number
98737
Product name
2,3-Pyrazinedicarboxylic anhydride
Packaging
2.5g
Price
$355
Updated
2021/12/16
Matrix Scientific
Product number
070860
Product name
2,3-Pyrazinedicarboxylic anhydride
Purity
98%
Packaging
25g
Price
$49
Updated
2021/12/16
More
Less

2,3-Pyrazinecarboxylic anhydride Chemical Properties,Usage,Production

Uses

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-Pyrazinecarboxylic anhydride Preparation Products And Raw materials

Raw materials

Quinoxaline Glyoxal Dicarboxylic Acid o-Phenylenediamine

Preparation Products

More
Less

2,3-Pyrazinecarboxylic anhydride Suppliers

China 270 Europe 3 Germany 2 India 12 Russia 1 Switzerland 2 United Kingdom 11 United States 26 USA 1 Global 328
More
Less

View Lastest Price from 2,3-Pyrazinecarboxylic anhydride manufacturers

HUARONG(GUANGDONG) PHARMACEUTICAL CO.,LTD
Product
2,3-Pyrazinecarboxylic anhydride 4744-50-7
Price
US $0.00/kg
Min. Order
25kg
Purity
99%
Supply Ability
20T
Release date
2024-11-21
WUHAN FORTUNA CHEMICAL CO., LTD
Product
2,3-Pyrazinecarboxylic anhydride 4744-50-7
Price
US $0.00-0.00/Kg/Drum
Min. Order
1KG
Purity
98%min
Supply Ability
100KGS
Release date
2021-06-24
Shannxi Bosen Medical Technology Co.,Ltd
Product
2,3-pyrazinedicarboxylic anhydride 4744-50-7
Price
US $126.00/KG
Min. Order
25KG
Purity
99.9%
Supply Ability
20tons
Release date
2023-07-31

4744-50-7, 2,3-Pyrazinecarboxylic anhydrideRelated Search:

RP 48497 (Eszopiclone Impurity C) 1-Piperazinecarboxylicacid,4-methyl-,ethylester(6CI,9CI) 2,3-Pyrazinedicarboxylic acid Trifluoromethanesulfonic anhydride Pyrazinamide Pyrazine Sulfachoropyrazine sodium Glipizide Isatoic Anhydride CIS-BUTENEDIOIC ANHYDRIDE Phthalic anhydride Zopiclone Impurity 10 ZOPICLONE N-OXIDE Zopiclone Impurity 18 Zopiclone Impurity 3 N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide Deschloro-Zopiclone N,N'-Dimethylpiperazine

  • PYRAZINE-2,3-DICARBOXYLIC ANHYDRIDE
  • Zopiclone Impurity 5
  • 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-DIONE
  • 2,3-Pyrazinedicarboxylic acid anhydride
  • Furo[3,4-b]pyrazine-5,7-dione (9CI)
  • 5,7-Dihydrofuro[3,4-b]pyrazine-5,7-dione
  • Name: 2,3-Pyrazinedicarboxylic anhydride
  • furo[3,4-b]pyrazine-5,7-quinone
  • 2,3-Pyrazine Dicarbo
  • Pyrazine 2,3-dicarboxylic acid anhydride
  • 5H,7H-furo[3,4-b]pyrazine-5,7-dione
  • Pyrazine-2,3-carboxylaMide-2-carboxylic acid aMMoniuM
  • Furo[3,4-b]pyrazine-5,7-dione, 5,7-Dihydro-5,7-dioxofuro[3,4-b]pyrazine
  • Pyrazin 2,3-dicarboxylic acid anhydride
  • 2,3-Pyrazinedicarboxylic anhydride 97%
  • pyrazine-2,3-dicarboxylic
  • Furo[3,4-b]pyrazine-5,7-dione (9CI, ACI)
  • 4744-50-7
  • 7477-50-7
  • C6H2N2O3
  • Pesticide intermediates
  • GLYCINESCAFFOLD
  • Fused Ring Systems
  • bc0001