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ChemicalBook >> CAS DataBase List >> 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one price.
  • $12.7 - $1960
  • Product name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
  • CAS: 43200-81-3
  • MF: C11H7ClN4O2
  • MW: 262.65
  • EINECS:256-139-4
  • MDL Number:MFCD02684321
  • Synonyms:6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one ;6-(5-Chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydro-pyrrolo-(3,4b) Pyrazime;Zopiclone6-(5-Chloropyrid-2-Yl)-5-Hydroxy-7-Oxo-6,7-Dihydro-5H-Pyrrolo-[3,4-B]-Pyrazine;6-(5-Chloro-2-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo[3,4-b]pyrazin-5-one;Intermediate for Zopiclone II;6-(5-Chloro-2-pyridin-2-yl)-7-hydroxy-6,7-dihydro-pyrrolo[3,4-β]pyrazin-5-one;6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-β]pyrazin-5-one;6-(5-Chloro-2-pyridinyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Price46 Properties Safety Information Description
46 prices
Selected condition：
Brand
  • AK Scientific
  • Ambeed
  • Atlantic Research Chemicals
  • Biosynth
  • Cayman Chemical
  • Crysdot
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • Synthonix
  • TRC
Package
  • 50mg
  • y0001822
  • 25mg
  • 100mg
  • 250mg
  • 500mg
  • 0.5g
  • 1g
  • 1.00g
  • 2g
  • 2.5g
  • 5g
  • 5.00g
  • 10g
  • 25.00g
  • 25g
  • 20 mg
  • ManufacturerAK Scientific
  • Product numberJ10664
  • Product descriptionEszopiclone Impurity B 99%(HPLC)
  • Packaging25mg
  • Price$28
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberV0459
  • Product description6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC)
  • Packaging1g
  • Price$73
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ10664
  • Product descriptionEszopiclone Impurity B 99%(HPLC)
  • Packaging100mg
  • Price$68
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberV0459
  • Product description6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC)
  • Packaging5g
  • Price$108
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ10664
  • Product descriptionEszopiclone Impurity B 99%(HPLC)
  • Packaging1g
  • Price$147
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberV0459
  • Product description6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC)
  • Packaging10g
  • Price$154
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberV0459
  • Product description6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC)
  • Packaging25g
  • Price$235
  • Updated2026-06-04
  • Buy
  • ManufacturerAmbeed
  • Product numberA202482
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95%
  • Packaging5g
  • Price$108
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA202482
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95%
  • Packaging10g
  • Price$154
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA202482
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95%
  • Packaging1g
  • Price$72
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA202482
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95%
  • Packaging250mg
  • Price$31
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA202482
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95%
  • Packaging25g
  • Price$235
  • Updated2021-12-16
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberHA002371
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95
  • Packaging500mg
  • Price$31.75
  • Updated2026-05-23
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberHA002371
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95
  • Packaging1g
  • Price$48.26
  • Updated2026-05-23
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberHA002371
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95
  • Packaging50mg
  • Price$12.7
  • Updated2026-05-23
  • Buy
  • ManufacturerAtlantic Research Chemicals
  • Product numberHA002371
  • Product description6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95
  • Packaging100mg
  • Price$15.24
  • Updated2026-05-23
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific J10664 Eszopiclone Impurity B 99%(HPLC) 25mg $28 2026-06-04 Buy
AK Scientific V0459 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC) 1g $73 2026-06-04 Buy
AK Scientific J10664 Eszopiclone Impurity B 99%(HPLC) 100mg $68 2026-06-04 Buy
AK Scientific V0459 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC) 5g $108 2026-06-04 Buy
AK Scientific J10664 Eszopiclone Impurity B 99%(HPLC) 1g $147 2026-06-04 Buy
AK Scientific V0459 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC) 10g $154 2026-06-04 Buy
AK Scientific V0459 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 99%(HPLC) 25g $235 2026-06-04 Buy
Ambeed A202482 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95% 5g $108 2021-12-16 Buy
Ambeed A202482 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95% 10g $154 2021-12-16 Buy
Ambeed A202482 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95% 1g $72 2021-12-16 Buy
Ambeed A202482 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95% 250mg $31 2021-12-16 Buy
Ambeed A202482 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95% 25g $235 2021-12-16 Buy
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 500mg $31.75 2026-05-23 Buy
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 1g $48.26 2026-05-23 Buy
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 50mg $12.7 2026-05-23 Buy
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 100mg $15.24 2026-05-23 Buy
Next Last

Properties

Melting point :240.5-241.50C
Boiling point :525.2±50.0 °C(Predicted)
Density :1.653±0.06 g/cm3(Predicted)
storage temp. :2-8°C
solubility :DMSO (Slightly), Methanol (Slightly)
form :Solid
pka :8.62±0.20(Predicted)
color :Off-White to Pale Beige
Major Application :pharmaceutical (small molecule)
InChI :InChI=1S/C11H7ClN4O2/c12-6-1-2-7(15-5-6)16-10(17)8-9(11(16)18)14-4-3-13-8/h1-5,10,17H
InChIKey :FUUXOEKDNNWZTR-UHFFFAOYSA-N
SMILES :C12C(O)N(C3=NC=C(Cl)C=C3)C(=O)C1=NC=CN=2
CAS DataBase Reference :43200-81-3(CAS DataBase Reference)

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Eszopiclone intermediate

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Suppliers and manufacturers

Shanghai Peiling Biological Technology Co., Ltd XiaoGan ShenYuan ChemPharm co,ltd J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. TAIYUAN RHF CO.,LTD. Beijing Ouhe Technology Co., Ltd Nanjing Chemlin Chemical Co., Ltd Chemsky（shanghai）International Co.,Ltd. Jinan Trio PharmaTech Co., Ltd. Syntechem Co.,Ltd