Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

43200-81-3

43200-81-3 structure

43200-81-3 structure

Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
Chemical Name: 6-(5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one
CAS Number: 43200-81-3
Molecular Formula: C₁₁H₇ClN₄O₂
Molecular Weight: 262.652
Create Date: 2018-11-28 18:05:53
Modify Date: 2025-08-19 19:42:38

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)-5-hydroxy-7-oxo-5,6-dihydroprolo(3,4b)pyrazine ZOPII 5H-Pyrrolo[3,4-b]pyrazin-5-one, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-hydroxy- Intermediate for Zopiclone II 6-(5-Chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydro-pyrrolo-(3,4b) Pyrazime Intermediate II for Zopiclone 6-(5-chloro-2-pyridinyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazine-5-one Zopiclone interMediate II [Eszoplicone IMpurity B] 6-(5-chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5h-pyrrolo(3,4-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-pyridinyl)-7-hydroxy-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one EINECS 256-139-4 6-(5-CHLORO-PYRIDIN-2-YL)-7-HYDROXY-6,7-DIHYDRO-PYRROLO3,4-BPYRAZIN-5-ONE 6-(5-chloropyridin-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo-[3,4-b]-pyrazine MFCD02684321 6-(5-Chloro-pyridin-2-yl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one UNII:68396623QX 6-(5-CHLORO-2-PYRIDYL)-6,7-DIHYDRO-7-HYDROXY-5H-PYRROLO (3,4 -B)PYRAZIN-5-ONE

Density	1.7±0.1 g/cm3
Boiling Point	525.2±50.0 °C at 760 mmHg
Melting Point	240.5-241.5ºC
Molecular Formula	C₁₁H₇ClN₄O₂
Molecular Weight	262.652
Flash Point	271.5±30.1 °C
Exact Mass	262.025757
PSA	79.21000
LogP	-0.78
Vapour Pressure	0.0±1.5 mmHg at 25°C
Index of Refraction	1.719
Storage condition	-20°C Freezer

Hazard Codes	Xi
HS Code	2933990090

Precursor 3
138680-08-7 508169-18-4 43200-82-4
DownStream 4
508169-18-4 43200-80-2 138729-47-2 43200-88-0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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