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

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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)

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Safety

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

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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.

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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

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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

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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

SHANGHAI BANGCHENG CHEMICAL Co.,Ltd.

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J & K SCIENTIFIC LTD.

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3B Pharmachem (Wuhan) International Co.,Ltd.

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future industrial shanghai co., ltd

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ShangHai DEMO Chemical Co.,Ltd

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Energy Chemical

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Wuhan Chemwish Technology Co., Ltd

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Capot Chemical Co., Ltd

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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