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/GIF/43200-81-3.gif)
- 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
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 02:05:27
| Product description | Number | Pack Size | Price |
| Zopiclone impurity B European Pharmacopoeia (EP) Reference Standard | Y0001822 | 20 mg | $167 |
| Zopiclone impurity B European Pharmacopoeia (EP) Reference Standard | Y0001822 | y0001822 | $153 |
| Zopiclone Impurity B ≥95% | 43001 | 250mg | $54 |
| Zopiclone Impurity B ≥95% | 43001 | 500mg | $97 |
| Zopiclone Impurity B ≥95% | 43001 | 1g | $184 |
| More product size | |||
| 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) |
| 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 |
| REACH Registrations | Active |
6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one price More Price(46)
| 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 | $167 | 2026-04-30 | Buy |
| Sigma-Aldrich | Y0001822 | Zopiclone impurity B European Pharmacopoeia (EP) Reference Standard | 43200-81-3 | y0001822 | $153 | 2024-03-01 | Buy |
| Cayman Chemical | 43001 | Zopiclone Impurity B ≥95% | 43200-81-3 | 250mg | $54 | 2026-04-30 | Buy |
| Cayman Chemical | 43001 | Zopiclone Impurity B ≥95% | 43200-81-3 | 500mg | $97 | 2026-04-30 | Buy |
| Cayman Chemical | 43001 | Zopiclone Impurity B ≥95% | 43200-81-3 | 1g | $184 | 2026-04-30 | Buy |
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
Global( 192)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 | sales01@cooperate-pharm.com | CHINA | 1796 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21531 | 55 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| NINGBO INNO PHARMCHEM CO., LTD. | 13867897135 | sales@nbinno.com | CHINA | 920 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2949 | 58 |
| HubeiwidelychemicaltechnologyCo.,Ltd | 18627774460 | faith@widelychemical.com | CHINA | 738 | 58 |
| CONIER CHEM AND PHARMA LIMITED | sales@conier.com | China | 49906 | 58 | |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9631 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21135 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17339 | 58 |
View Lastest Price from 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one pictures](/ProductImageEN2/2026-04/Small/e7759fc6-b558-4b72-a016-0097155ee90a.jpg) |
2026-06-30 | 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
|
1kg | 98% | 1000kgs | Shaanxi Dideu New Materials Co. Ltd | ||
![6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one pictures](/ProductImageEN/2022-10/Small/c4fe0cd2-c4e5-44aa-b55c-d95b57bb5655.png) |
2025-04-04 | 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
|
1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd.
|
||
![6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one pictures](/ProductImageEN/2024-01/Small/fdecacf8-62ed-483f-bd19-2897215d0ca3.jpg) |
2024-01-16 | 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
|
$35.00-45.00 | 1kg | 99.8% | 200tons/year | Sigma Audley |
-
- 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
- $0.00
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
43200-81-3
- 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
- $35.00-45.00
- 99.8%
- Sigma Audley
43200-81-3(6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one)Related Search:
RP 48497 (Eszopiclone Impurity C)
N-(5-Chloro-2-pyridinyl)-3-(hydroxyMethyl)-2-pyrazinecarboxaMide
N-(5-Chloro-2-pyridinyl)-2-pyrazinecarboxaMide (Zopiclone IMpurity)
2-Amino-5-chloropyridine
N-Desmethyl Zopiclone HCl
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
Zopiclone reduced compound
43200-81-3
Aromatics Compounds
Aromatics
Heterocycles
Intermediates & Fine Chemicals
Pharmaceuticals
