2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one

Modify Date: 2025-09-16 18:53:14

2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one Structure
2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one structure
 Common Name 2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one
CAS Number 897661-99-3 Molecular Weight 262.71500
Density N/A Boiling Point N/A
Molecular Formula C12H7ClN2OS Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one

 Chemical & Physical Properties

Molecular Formula C12H7ClN2OS
Molecular Weight 262.71500
Exact Mass 261.99700
PSA 73.99000
LogP 3.30500

 Synthetic Route

5-(4-chlorophenyl)-3-formylthiophene-2-carboxylic acid structure

5-(4-chlorophen...

CAS#:921592-97-4

~70%

2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one Structure

2-(4-chlorophen...

CAS#:897661-99-3

Literature: ASTRAZENECA AB Patent: WO2007/11284 A1, 2007 ; Location in patent: Page/Page column 32 ; WO 2007/011284 A1
Methanol structure

Methanol

CAS#:67-56-1

5-(4-Chlorophenyl)thiophene-2-carboxylic acid structure

5-(4-Chlorophen...

CAS#:40133-14-0

~89%

2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one Structure

2-(4-chlorophen...

CAS#:897661-99-3

Literature: Bristol-Myers Squibb Company Patent: US2008/269110 A1, 2008 ; Location in patent: Page/Page column 18-19 ; US 20080269110 A1
4-chloro-2-(tetrahydropyran-2-yl)-5-(4-chlorophenylethynyl)-2H-pyridazin-3-one structure

4-chloro-2-(tet...

CAS#:897661-92-6

~%

2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one Structure

2-(4-chlorophen...

CAS#:897661-99-3

Literature: Dyck, Brian; Markison, Stacy; Zhao, Liren; Tamiya, Junko; Grey, Jonathan; Rowbottom, Martin W.; Zhang, Mingzhu; Vickers, Troy; Sorensen, Katie; Norton, Christi; Wen, Jenny; Heise, Christopher E.; Saunders, John; Conlon, Paul; Madan, Ajay; Schwarz, David; Goodfellow, Val S. Journal of Medicinal Chemistry, 2006 , vol. 49, # 13 p. 3753 - 3756
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Chemsrc provides CAS#:897661-99-3 MSDS, density, melting point, boiling point, structure, etc. Its name is 2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one>> amp version: 2-(4-chlorophenyl)-6H-thieno[2,3-d]pyridazin-7-one

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