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

Product Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
CAS No.: 43200-81-3
Chemical Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Synonyms: 6-(5-chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one;ZOPII;RP 29307;Zopiclone imp B;4-b]pyrazin-5-one;Eszopiclone Imp.B;Zopiclonereductant;Zopiclone intermediate;Eszopiclone IMpurity B;Zopiclone intermediates
CBNumber: CB5176517
Molecular Formula: C11H7ClN4O2
Formula Weight: 262.65
MOL File: 43200-81-3.mol

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

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
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)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: Y0001822
Product name: Zopiclone impurity B
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: 20 mg
Price: $156
Updated: 2025/07/31

Sigma-Aldrich

Product number: Y0001822
Product name: Zopiclone impurity B
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: y0001822
Price: $153
Updated: 2024/03/01

Matrix Scientific

Product number: 167910
Product name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Packaging: 1g
Price: $85
Updated: 2021/12/16

Matrix Scientific

Product number: 167910
Product name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Packaging: 5g
Price: $241
Updated: 2021/12/16

Matrix Scientific

Product number: 167910
Product name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Packaging: 25g
Price: $395
Updated: 2021/12/16

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

Chemical Properties

Yellow Crystalline Powder

Uses

Eszopiclone intermediate

Uses

Eszopiclone Impurity B.

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

Raw materials

Preparation Products

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

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

Henan Aochuang Chemical Co.,Ltd.

Product: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 1Ton
Release date: 2022-10-10

Sigma Audley

Product: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3
Price: US $45.00-35.00/kg
Min. Order: 1kg
Purity: 99.8%
Supply Ability: 200tons/year
Release date: 2024-01-16

Career Henan Chemical Co

Product: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100KG
Release date: 2018-08-20

43200-81-3, 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-oneRelated Search:

Eszopiclone N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide RP 48497 (Eszopiclone Impurity C) N-Methyl-2-pyrrolidone CHLOROPHOSPHONAZO III 3-Hydroxypyridine Polyvinylpyrrolidone Povidone iodine N-(5-Chloro-2-pyridinyl)-2-pyrazinecarboxaMide (Zopiclone IMpurity) 2-Amino-5-chloropyridine N-Desmethyl Zopiclone HCl ZOPICLONE N-OXIDE Zopiclone Impurity 10 Zopiclone Impurity 18 Zopiclone Impurity 3 Deschloro-Zopiclone N,N'-Dimethylpiperazine 2,3-Pyrazinecarboxylic anhydride

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

7-dihydro-7-hydroxy-5H-pyrrolo[3

Zopiclone EP Impurity B

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

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

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

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

[Eszoplicone IMpurity B]

RP 29307

Zopiclone interMediate II

ZOPII

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

Zopiclone intermediates

6-(5-CHLORO-2-PYRIDYL)-6,7-DIHYDRO-7-HYDROXY-5H-PYRROLOL(3,4-B)PYRAZIN-5-ONE

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

Eszopiclone IMpurity B

Eszopiclone Imp.B

Dexzopiclone impurity B

5H-Pyrrolo[3,4-b]pyrazin-5-one, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-hydroxy-

6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-...

Zopiclone impurity B (Y0001822)

6-(5-Chloro-2-pyridyl)-6,7-dihydro-

Zopiclone imp B

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

6-(5-Chloropyrid-2-yl)-5-hydroxy-7-oxo-5, 6-dihydropyrrolo [3, 4-b] pyrazine?Intermediate

6-(5-chloro-2-pyridinyl)-6, 7-dihydro-7-hydroxy-5H-pyrrolo [3, 4-b] pyrazine-5-one

Zopiclonereductant

6-(5-Chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one - [C70798]

Zopiclone Imp.B (EP): (7RS)-6-(5-chloropyridin-2-yl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one

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

43200-81-3

Aromatics Compounds

Aromatics

Heterocycles

Intermediates & Fine Chemicals

Pharmaceuticals