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 structure

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;Eszopiclone Imp.B;4-b]pyrazin-5-one;Zopiclonereductant;Eszopiclone IMpurity B;Zopiclone intermediate;Zopiclone intermediates

CBNumber:: CB5176517

Molecular Formula:: C11H7ClN4O2

Molecular Weight:: 262.65

MDL Number:: MFCD02684321

MOL File:: 43200-81-3.mol

Last updated:2025-07-14 15:27:00

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6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 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
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)
FDA UNII	68396623QX
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264-P280-P305+P351+P338-P337+P313P

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one price More Price(13)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	Y0001822	Zopiclone impurity B European Pharmacopoeia (EP) Reference Standard	43200-81-3	20 mg	$156	2025-07-31	Buy
Sigma-Aldrich	Y0001822	Zopiclone impurity B European Pharmacopoeia (EP) Reference Standard	43200-81-3	y0001822	$153	2024-03-01	Buy
Matrix Scientific	167910	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one	43200-81-3	1g	$85	2021-12-16	Buy
Matrix Scientific	167910	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one	43200-81-3	5g	$241	2021-12-16	Buy
Matrix Scientific	167910	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one	43200-81-3	25g	$395	2021-12-16	Buy

Product number	Packaging	Price	Buy
Y0001822	20 mg	$156	Buy
Y0001822	y0001822	$153	Buy
167910	1g	$85	Buy
167910	5g	$241	Buy
167910	25g	$395	Buy

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

Chemical Properties

Yellow Crystalline Powder

Uses

Eszopiclone Impurity B.

Uses

Eszopiclone intermediate

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

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

Global( 186)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1803	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21622	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29855	58
NINGBO INNO PHARMCHEM CO., LTD.	13867897135	sales@nbinno.com	CHINA	923	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
Jinan Finer Chemical Co., Ltd	+86-531-88989536 +86-15508631887	sales@finerchem.com	China	2955	58
HubeiwidelychemicaltechnologyCo.,Ltd	18627774460	faith@widelychemical.com	CHINA	742	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49733	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58

Supplier	Advantage
Beijing Cooperate Pharmaceutical Co.,Ltd	55
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
NINGBO INNO PHARMCHEM CO., LTD.	58
Hubei Jusheng Technology Co.,Ltd.	58
Jinan Finer Chemical Co., Ltd	58
HubeiwidelychemicaltechnologyCo.,Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
Antai Fine Chemical Technology Co.,Limited	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58

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

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-04-04	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3	US $0.00-0.00 / kg	1kg	98%	1Ton	Henan Aochuang Chemical Co.,Ltd.
2024-01-16	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3	US $45.00-35.00 / kg	1kg	99.8%	200tons/year	Sigma Audley
2019-07-06	6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one 43200-81-3	US $1.00 / KG	1KG	98%	100KG	Career Henan Chemical Co

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
US $0.00-0.00 / kg
98%
Henan Aochuang Chemical Co.,Ltd.

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
US $45.00-35.00 / kg
99.8%
Sigma Audley

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
US $1.00 / KG
98%
Career Henan Chemical Co

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

6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one(43200-81-3)¹HNMR

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

6-(5-Chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-yl piperazine-1-carboxylate hydrochloride ZOPICLONE N-OXIDE Zopiclone Impurity 10 Zopiclone Impurity 18 Zopiclone Impurity 3

Deschloro-Zopiclone N,N'-Dimethylpiperazine 2,3-Pyrazinecarboxylic anhydride

1of4

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 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 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 Zopiclone intermediate Zopiclone Impurity 2 (Zopiclone EP Impurity B) 6-(5-chloro-2-pyridinyl)-7-hydroxy-7H-pyrrolo[3,4-b]pyrazin-5-one 6-(5-chloro-2-pyridyl)-7-hydroxy-7H-pyrrolo[3,4-b]pyrazin-5-one Zopiclone impurity B (Y0001822) 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-... 5H-Pyrrolo[3,4-b]pyrazin-5-one, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-hydroxy- Dexzopiclone impurity B Zopiclone EP Impurity B 7-dihydro-7-hydroxy-5H-pyrrolo[3 6-(5-Chloro-2-pyridyl)-6 4-b]pyrazin-5-one 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- 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