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
Storage Class: 11 - Combustible Solids
Hazard Classifications: Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

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: $114.95
Updated: 2025/07/31

Sigma-Aldrich

Product number: 405019
Product name: 2,3-Pyrazinedicarboxylic anhydride
Purity: 97%
Packaging: 25g
Price: $416
Updated: 2025/07/31

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

AK Scientific

Product number: V1227
Product name: 2,3-Pyrazinedicarboxylic anhydride
Packaging: 5g
Price: $14
Updated: 2021/12/16

More

Less

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

Chemical Properties

Crystallizes. Melting point 223-224°C (decomposes at 210°C).

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%).

References

[1] Molecules, 2017, vol. 22, # 9,
[2] Journal of the American Chemical Society, 1953, vol. 75, p. 679
[3] Helvetica Chimica Acta, 1958, vol. 41, p. 498,509

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 274 Europe 3 Germany 2 India 12 Russia 1 Switzerland 2 United Kingdom 11 United States 26 USA 1 Global 332

SHANGHAI BANGCHENG CHEMICAL Co.,Ltd.

Tel: 021-69106960 13701823733
Fax: 021-69106780
Email: 13701823733@163.com
Country: China
ProdList: 4641
Advantage: 60

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

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

Tel: 821-50328103-801 18930552037
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15838
Advantage: 69

future industrial shanghai co., ltd

Tel: 400-0066400 13621662912
Fax: 021-55660885
Email: sales@jonln.com
Country: China
ProdList: 1995
Advantage: 65

ShangHai DEMO Chemical Co.,Ltd

Tel: 400-021-7337 2355568890
Fax: 0086-21-50182339
Email: sales@demochem.com
Country: China
ProdList: 2572
Advantage: 57

Ark Pharm, Inc.

Tel: 847-367-3680
Fax: 847-367-3681
Email: sales@arkpharminc.com
Country: United States
ProdList: 1670
Advantage: 56

Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44801
Advantage: 61

Wuhan Chemwish Technology Co., Ltd

Tel: 86-027-67849912
Fax: 86-027-87531808
Email: sales@chemwish.com
Country: China
ProdList: 35896
Advantage: 56

Capot Chemical Co., Ltd

Tel: +86 (0) 571 85 58 67 18
Fax: 0086-571-85864795
Country: China
ProdList: 18207
Advantage: 66

More

Less

View Lastest Price from 2,3-Pyrazinecarboxylic anhydride manufacturers

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

Career Henan Chemical Co

Product: 2,3-Pyrazinecarboxylic anhydride 4744-50-7
Price: US $8.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10MT
Release date: 2018-12-21

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