2,3-Pyrazinedioic anhydride fine chemicals pharmaceutical excipients

Chinese name2,3-Pyrazine dicarboxylate

English name2,3-pyrazinedicarboxylic anhydride

aliasFu [3]

7-Diketone

Pyrazine dianhydride

4-B] pyrazine-5

2,3-Pyrazinedioic anhydride

Pyrazine 2,3-dicarboxylic anhydride

Pyrazine-2,3-carboxylic anhydride

2,3-Pyrazine dicarboxylate

Pyrazine-2,3-dicarboxylic anhydride

Fu [3,4-B] pyrazine-5,7-dione

Furan [3,4-B] pyrazine-5,7-dione

2,3-Pyrazinedioic anhydride (pyrazine-2,3-dicarboxylic anhydride)

English aliasZopiclone Impurity 5

FURO[3,4-B]PYRAZINE-5,7-DIONE

2,3-PYRAZINECARBOXYLIC ANHYDRIDE

2,3-PYRAZINEDICARBOXLIC ANHYDRIDE

2,3-PYRAZINEDICARBOXYLICANHYDRATE

2,3-PYRAZINEDICARBOXYLIC ANHYDRIDE

2,3-pyrazinedicarboxylic anhydride

Furo[3,4-b]pyrazine-5,7-dione (9CI)

PYRAZINE-2,3-DICARBOXYLIC ANHYDRIDE

2,3-Py Razinedica boxylic Anbyd Yide

2,3-Pyrazinedicarboxylic acid anhydride

CAS4744-50-7

EINECS225-260-4

chemical formulaC6H2N2O3

molecular weight150.09

density1.686±0.06 g/cm3(Predicted)

melting point210°C (dec.)(lit.)

boiling point357.3±22.0 °C(Predicted)

flash point169.9°C

vapor pressure2.76E-05mmHg at 25°C

solubilityActonitrile (Slightly), DMSO

refractive index1.634

acidity coefficient-3.43±0.20(Predicted)

Storage conditionsInert atmosphere,Room Temperature

appearanceSolid

colorWhite to light brown crystalline powder

physical propertiescrystal. Melting point 223-224 ℃ (decomposition at 210 ℃).

About Us

Jiangxi Ruiweier Biotechnology Co., Ltd. is located in Xiajiang County, Jiangxi Province, specializing in the field of scientific research reagents. We can provide customers with more than 30000 types of products, including general chemical reagents, high-purity reagents, environmentally friendly reagents, benchmark reagents, biochemical reagents, analytical standard solutions, impurity determination standard solutions and buffer solutions, fine chemicals, catalysts, scientific research auxiliary materials, intermediates, and fine chemicals. Our products are widely used in research institutions of universities, research institutes, high-tech industries such as biomedicine, new materials, new energy, energy conservation and environmental protection, aerospace and strategic emerging industries. The users of our products are mostly scientists and frontline R&D engineers, and we have won the trust of many customers.

The company has been selected as a national technology-based small and medium-sized enterprise and has passed the QES three major system certifications (ISO9001:2015 quality management system, ISO14001:2015 environmental quality management system certification, ISO45001:2018 occupational health and safety management system), EU CE certification, and EU REACH registration. It is currently a member unit of the China Chemical Reagent Industry Association (Pilot Test Association), and its products are all insured by the People's Insurance Group of China (PICC) for product liability insurance.

The company has always adhered to the service concept of "quality first, honest service", providing high-quality technical services to major universities, research institutes and other units across the country. The company's business has now spread throughout the country.

For many years, Ruiweier has adhered to the enterprise tenet of customer first and integrity-based, winning the trust of customers at home and abroad with advantageous product prices, reliable product quality, high-quality sales services, and fast warehouse clearance speed. Sincerely looking forward to providing "professional, honest, efficient, and caring" services, continuously strengthening business dealings with new and old customers, working together to create mutual benefits.