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BGC » Chemicals A-Z » 6-(5-Chloro-2-pyridyl)-6,7-dih...
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6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo(3,4-b)pyrazin-5-one

BGC Id:142788426852
CAS No:43200-81-3
Synonyms:zopiclone intermediate ii ; rp 29307 ; zopii ; eszopiclone imp.b ; eszopiclone impurity b ; intermediate for zopiclone ii ; 6-(5-chloro-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo3,4-bpyrazin-5-one ; [eszoplicone impurity b] ; 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydroprolo(3,4b)pyrazine ; 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5h-pyrrolo[3,4-b]
Molecular Formula:C11H7ClN4O2
Molecular Weight:262.65
EINECS:256-139-4
Structural Formula

The most competitive supplier in 2025

The following 11 notable providers have been checked and can be recommended.
The last intensive check and update was carried out on 2025/09/17.

Identify

Synonyms:
zopiclone intermediate ii ; rp 29307 ; zopii ; eszopiclone imp.b ; eszopiclone impurity b ; intermediate for zopiclone ii ; 6-(5-chloro-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo3,4-bpyrazin-5-one ; [eszoplicone impurity b] ; 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydroprolo(3,4b)pyrazine ; 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5h-pyrrolo[3,4-b]
CAS:
43200-81-3
EINECS:
256-139-4
Molecular Formula:
C11H7ClN4O2
MDL:
MFCD02684321
SMILES:
COC1=CC=C(C=C1)/C=C/C2=CC=CC=C2

Properties

Molecular Weight:
262.65 g·mol−1
Density:
1.65 g/cm3 (Predicted)
Melting point:
240.5-241.50C
Boiling point:
525.24° C at 760 mmHg (Predicted)

Suppliers

Simagchem Corporation

Company type: Bulk chemical producer
Your partner in China for chemicals business. Expertize in supplies and sources of fine, specialty, pharmaceutical chemicals and intermediates. WE offer high quality products and JIT services with instant market intelligence in China, custom synthesis in our 3 production sites, famous principals as Brenntag, Univar,S inopec, Grace, Petrobras, DKSH, Formitex, Evonik, Merck, TCI, Sanofi, Chemo with creditable reputation and business cooperation. Simagchem Corporation is a seller of Methyl 3-methyl-2-nitrobenzoate.
Country: P.R.China   Phone: +86 592 2680 277   Telefax: +86 592 2680 237

Shandong Minglang Chemical Co., Ltd

Company type: Producer
Country: P.R.China
Phone: +86-13220566916
Telefax: +86 531 58990167
Minglang Chemical is owned by Minglang Group,is a large manufacturer of fine chemicals and cosmetic materials that integrates R&D,production and sales together.It is located in the east of the Nanwang Economic Development District in Linzi,and the west of it is Qilu Petroleum Chemical Group,the east of it is Zijiang Road and the transportation is convenient.The enterprise covers an area of 9,000 square meters and the building area can be 3,200 square meters. 2-Pyridinol-1-oxide will be also provided by us. In recent years,t ...

H&Z Industry Co.,Ltd

H&Z Industry Co.,Ltd is a large reliable and professional manufacturer of chemical materials and pharmaceutical intermediate. With about 10 years experiences in this field, now we are a capable provider of customized product, and we can provide gram level to ton level of products. What we can give to customers: thoughtful services, high-quality products, competitive price, Looking forward building long-term cooperative relationships with our business partners. 3-Methylanisole is also served by H&Z Industry Co.,Ltd.
Country: P.R.China
Phone: +86 13583185792
Telefax: +86 531 88905468

Xingrui Industry Co., Limited

Company type: Leading producer
Xingrui Industry CO., LTD. Fusidine is also served by Xingrui Industry Co., Limited. is a professional manufacturing enterprise integrating R&D, production and sales. The products involved fine chemicals, pharmaceutical intermediates, dye intermediates, cosmetic raw materials and so on. The company is ranked among the outstanding producers in the fine chemical industry. Xingrui Industry always strive to be the most reliable partner of our customers, and strive to build a customer-trusted, socially respected, world-class fine chemi ...
Country: P.R.China   Phone: +86-531-88980365   Telefax: +86-531-88980365

Hangzhou Zhongqi Chem Co., Ltd

Company type: Leading producer
Country: P.R.China
Phone: +86-571-86976032
Telefax: +86-571-86972162
Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. We are seller of Iodobenzene diacetate. Our advantage : 1.We do not simply provide chemicals , we provide chemical solutions and expertise; 2.We have trained, highly effective team to solve the problem at the first time; 3.Our QMS (quality management system) ensures the product quality strictly; 4.Strong research and deve ...

Dayang Chem (Hangzhou) Co.,Ltd.

Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. Diphenyloxazole will be also provided by us. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...
Company type: Leading producer
Country: P.R.China
Phone: +86-571-88938639
Telefax: +86-571-8893-8652

Nantong Xindao Biotech Ltd

Company type: Leading producer
XINDAO is a world leading biochemical company formed by a professional team.The company specializes in the production, development and sales of animal health, crop science, nutrition and health care, skin care raw materials, fine chemicals and other products. 2-hydroxy-1-methylethylacrylate is also served by Nantong Xindao Biotech Ltd. At present, more than 300 kinds of products can be mass produced, which are widely used in chemical industry, health, agriculture, animal husbandry, biochemical research and other high-end fields. XINDAO pays attention ...
Country: P.R.China   Phone: +86 19033786557  

Xiamen Equation Chemical Co.,Ltd

Company type: Bulk chemical producer
Country: P.R.China
Phone: +86 592 6515854
Telefax: +86 592 6515854
Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. Additionally Pyrimidine-5-boronic acid pinacol ester is supplied by us. We are committed to provide experienced high quality product and JIT performance to benefit our customers.

Leap Chem Co., Ltd

LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
Company type: Bulk and laboratory supplier
Country: P.R.China
Phone: +852-30606658

BIOZOL Diagnostica Vertrieb GmbH

Company type: Supplier of chemical products
Chemos®, a subsidiary of BIOZOL Diagnostica Vertrieb GmbH, is a leading supplier of ready to use solutions for the lab and chemical industry. BIOZOL Diagnostica Vertrieb GmbH is a seller of 2-Chloro-6-methylpyridine-3-boronic acid. We are producing reagents and standards for the analytical lab and supplying raw materials for the chemical and pharmaceutical industry. The base of our solutions are a portfolio of ~ 200.000 raw materials where ~ 50.000 are already available for R+D ready to order in our shop. We are supplying and producing lab quantities from tiny qua ...
Country: Germany   Phone: +49-871-966346-0   Telefax: +49-871-966346-13

BuGuCh & Partners

Company type: Producer
Country: Germany
We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...

Safety Information

Hazard Classes:
Storage temperature:
-20 °C Freezer

What other providers are available for CAS 43200-81-3?

In addition to the providers presented here for 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo(3,4-b)pyrazin-5-one with the CAS number 43200-81-3, there are other 11 providers with slightly different product names available for this CAS number.

AK Scientific, Inc. +1 additional providers that we know from the past
+2 additional providers that we know from the past
Hangzhou Keying Chem Co., Ltd. | BuGuCh & Partners +2 additional providers that we know from the past
BLD Pharmatech Ltd +1 additional providers that we know from the past




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