Welcome to chemicalbook!
China English Japan Germany
010-86108875
18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
Structure Search
RFQ
Try our best to find the right business for you.
Messages
Do not miss inquiry messages Please log in to view all inquiry messages.
My chemicalbook Sign in

Welcome back!

RFQ
skype
MY Account
Top
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-CHLOROPYRIDIN-2-YL)-5-HYDROXY-7-OXO-5,6-DIHYDROPROLO(3,4B)PYRAZINE;6-(5-CHLORO-PYRIDIN-2-YL)-7-HYDROXY-6,7-DIHYDRO-PYRROLO3,4-BPYRAZIN-5-ONE;6-(5-chloro-2-pyridyl)-7-hydroxy-7H-pyrrolo[3,4-b]pyrazin-5-one;6-(5-chloro-2-pyridinyl)-7-hydroxy-7H-pyrrolo[3,4-b]pyrazin-5-one;Zopiclone Impurity 2 (Zopiclone EP Impurity B);Zopiclone intermediate;4-b]pyrazin-5-one;6-(5-Chloro-2-pyridyl)-6
Price33 Properties Safety Information Description
33 prices
Selected condition：
Brand
  • AK Scientific
  • Ambeed
  • Atlantic Research Chemicals
  • Cayman Chemical
  • Crysdot
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • Synthonix
Package
  • 50mg
  • 100mg
  • 250mg
  • 500mg
  • 1.00g
  • y0001822
  • 1g
  • 2.5g
  • 5.00g
  • 5g
  • 10g
  • 25g
  • 25.00g
  • 20 mg
  • ManufacturerAK Scientific
  • Product numberV0459
  • Product description6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
  • Packaging5g
  • Price$960
  • 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
  • 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%
  • 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%
  • 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
  • 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
  • Packaging5g
  • Price$127
  • 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
  • Packaging2.5g
  • Price$95.25
  • 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
  • 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
  • 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
  • Packaging250mg
  • Price$20.32
  • Updated2026-05-23
  • Buy
  • ManufacturerCayman Chemical
  • Product number43001
  • Product descriptionZopiclone Impurity B ≥95%
  • Packaging250mg
  • Price$54
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number43001
  • Product descriptionZopiclone Impurity B ≥95%
  • Packaging500mg
  • Price$97
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number43001
  • Product descriptionZopiclone Impurity B ≥95%
  • Packaging1g
  • Price$184
  • Updated2026-04-30
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific V0459 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 5g $960 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
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% 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% 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
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 5g $127 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 2.5g $95.25 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 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
Atlantic Research Chemicals HA002371 6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one 95 250mg $20.32 2026-05-23 Buy
Cayman Chemical 43001 Zopiclone Impurity B ≥95% 250mg $54 2026-04-30 Buy
Cayman Chemical 43001 Zopiclone Impurity B ≥95% 500mg $97 2026-04-30 Buy
Cayman Chemical 43001 Zopiclone Impurity B ≥95% 1g $184 2026-04-30 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

More related product prices

3-Hydroxypyridine CHLOROPHOSPHONAZO III 1-Methyl-2-pyrrolidinone Povidone iodine Eszopiclone N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide 2-Amino-5-chloropyridine 6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl piperazine-1-carboxylate hydrochloride N,N'-Dimethylpiperazine 4744-50-7 6-(5-Chloro-2-pyridyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione 39539-66-7 Zonisamide N,N-Dimethylformimidamide 19757-97-2 2-bromo-3-methylacetophenone 6-Methyl-2-(4-methylphenyl)imidazol[1,2-a]-pyridine-3-acetic acid 3-(4-Methylbenzoyl)propionic acid 7-methyl-2-(p-tolyl)imidazo[1,2-a]pyridine

Related product price

Suppliers and manufacturers

career henan chemical co
6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
$1.00
6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one CAS:43200-81-3
Beijing Cooperate Pharmaceutical Co.,Ltd
Henan Tianfu Chemical Co.,Ltd.
NINGBO INNO PHARMCHEM CO., LTD.
Jinan Finer Chemical Co., Ltd
HubeiwidelychemicaltechnologyCo.,Ltd
CONIER CHEM AND PHARMA LIMITED
Antai Fine Chemical Technology Co.,Limited
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
SIMAGCHEM CORP