56639-88-4

Basic information

• Product Name: 5-Methylbenzo[b]thiophen-3(2H)-one
• Synonyms: 5-Methylbenzo[b]thiophen-3(2H)-one;2,3-DIHYDRO-3-KETO-5-METHYLBENZOTHIOPHENE
• CAS NO: 56639-88-4
• Molecular Formula: C₉H₈OS
• Molecular Weight: 164.23
• Mol File: 56639-88-4.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-Methylbenzo[b]thiophen-3(2H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Methylbenzo[b]thiophen-3(2H)-one(56639-88-4)
• EPA Substance Registry System: 5-Methylbenzo[b]thiophen-3(2H)-one(56639-88-4)

Safety Data

• Hazardous Substances Data: 56639-88-4(Hazardous Substances Data)

Upstream product

• 30893-63-1 (p-tolylthio)acetic acid chloride 
• 623-13-2 4-methylphenyl methylsulfide 
• 79-04-9 chloroacetyl chloride 
• 3996-29-0 2-[(4-methylphenyl)thio]acetic acid 
• 106-45-6 para-thiocresol 

Downstream Products

• 19995-06-3 2-benzylidene-5-methyl-benzo[b]thiophen-3-one 
• 14315-14-1 5-methylthianaphthene 
• 1379675-28-1 (Z)-5-methyl-2-(4-pentylbenzylidene)benzo[b]thiophen-3(2H)-one 
• 60904-82-7 (Z)-5-methyl-2-(4-methylbenzylidene)benzo[b]thiophen-3(2H)-one 
• 61976-59-8 2-(4-methoxybenzylidene)-5-methylbenzo[b]thiophen-3(2H)-one 
• 60904-81-6 (Z)-2-benzylidene-5-methylbenzo[b]thiophen-3(2H)-one 
• 60904-88-3 (Z)-2-(4-chlorobenzylidene)-5-methylbenzo[b]thiophen-3(2H)-one 

Relevant articles and documents

MODULATORS OF HSD17B13 AND METHODS OF USE THEREOF

The disclosure relates to compounds and pharmaceutical compositions capable of modulating the hydroxysteroid 17-beta dehydrogenase (HSD17B) family member proteins including inhibiting the HSD17B member proteins, e.g. HSD17B13. The disclosure further relates to methods of treating liver diseases, disorders, or conditions with the compounds and pharmaceutical compositions disclosed herein, in which the HSD17B family member protein plays a role.

Bistable Photoswitching of Hemithioindigo with Green and Red Light: Entry Point to Advanced Molecular Digital Information Processing

Photoswitches reacting to visible light instead of harmful UV irradiation are of very high interest due to the mild and broadly compatible conditions of their operation. Shifting the absorption into the red region of the electromagnetic spectrum usually comes at the cost of losing thermal stability of the metastable state—the switch switches off by itself. Only recently have photoswitches become available that combine visible light responsiveness with high bistability. However, shifting the wavelengths for bistable photoswitching beyond 600 nm is still a great challenge without involving secondary processes such as two-photon absorption or sensitization. We present a simple hemithioindigo photoswitch that can efficiently be photoisomerized using green and red light while maintaining a high thermal barrier of the metastable state. This highly sought after properties allow for selective switching in a mixture of hemithioindigo dyes. In addition, protonation can be used as second independent input altering the light response of the switch and allowing construction of advanced molecular digital information processing devices. This is demonstrated by realizing a broad variety of logical operations covering combinational and sequential logic behavior. By making use of the protonation-induced loss of thermal bistability, a high security keypad lock could be realized, which distinguishes the sequences of three different inputs and additionally erases its unlocked state after a short time.

Selena and thiadiazole fused heterocycles

The carbonyl group present in benzothiophen-3-ones 4, 3,4- dihydrothiopyrano[3,2-b]benzothiophen-4(2H)-ones 11 and 3,4-dihydro-2H,5H- thiopyrano[2',3' : 4,5]thiopyrano[3,2-b]benzothiophen4-ones 16 has been made use to develop 1,2,3-selena and thiadiazoles via their semicarbazones by the reaction with selenium dioxide and thionyl chloride. The IR, H NMR and C, H analyses has been utilized to characterize the new compounds.