1795-05-7

Basic information

• Product Name: 2,3,5-Trimethylthiophene
• Synonyms: 2,3,5-TRIMETHYLTHIOPHENE
• CAS NO: 1795-05-7
• Molecular Formula: C₇H₁₀S
• Molecular Weight: 126.22
• EINECS: 217-269-7
• Mol File: 1795-05-7.mol
• Article Data: 7

Chemical Properties

• Melting Point: -51.23°C (estimate)
• Boiling Point: 82°C/52mm
• Flash Point: 36.218 °C
• Appearance: /
• Density: 0.98
• Refractive Index: 1.5120 to 1.5140
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 2,3,5-Trimethylthiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,5-Trimethylthiophene(1795-05-7)
• EPA Substance Registry System: 2,3,5-Trimethylthiophene(1795-05-7)

Safety Data

• RIDADR: UN 1993 3/PG III
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 1795-05-7(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Canadian Journal of Chemistry, 53, p. 209, 1975 DOI: 10.1139/v75-029Synthesis, p. 545, 1972 DOI: 10.1055/s-1972-21916

InChI:InChI=1/C7H10S/c1-5-4-6(2)8-7(5)3/h4H,1-3H3

Upstream product

• 5928-48-3 4,5-dimethylthiophene-2-carboxaldehyde 
• 34485-85-3 2,3-dimethyl-2-propenyl-oxirane 
• 10504-04-8 2,3,5-trimethylfuran 
• 101011-93-2 2,3-dimethyl-2-prop-1-ynyl-oxirane 
• 7783-06-4 hydrogen sulfide 
• 7732-18-5 water 
• 632-16-6 2,3-dimethylthiophene 
• 638-02-8 2,5-DIMETHYLTHIOPHENE 
• 13679-70-4 5-methylthiophene-2-carboxaldehyde 
• 5834-16-2 3-methyl-2-thiophenecarboxaldehdye 
• 766-58-5 2,5-dimethyl-thien-3-ylmethyl chloride 
• 14503-51-6 tetramethylthiophene 
• 53670-70-5 2-acetyl-3-methyl-4-oxopentanoic acid ethyl ester 
• 33688-06-1 Tetrahydro-3-methyl-2,5-thiophendion 

Downstream Products

• 63826-44-8 2,4,5-trimethyl-thiophene-3-carbaldehyde 
• 60813-84-5 3-iodo-2,4,5-trimethylthiophene 
• 14503-51-6 tetramethylthiophene 
• 632-16-6 2,3-dimethylthiophene 
• 638-02-8 2,5-DIMETHYLTHIOPHENE 
• 188290-36-0 thiophene 
• 120159-39-9 5-Phenyl-3-(2,4,5-trimethyl-thiophen-3-yl)-4,5-dihydro-isoxazole 
• 112440-46-7 1,2-dicyano-1,2-bis(2,3,5-trimethyl-3-thienyl)ethene 
• 112440-47-8 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride 
• 477706-43-7 [3,3,4,4,5,5-hexafluoro-1-(2-methyl-1-phenyl-1-propenyl)-2-(2,4,5-trimethyl-3-thienyl)]cyclopentene 
• 112440-49-0 3-(cyanomethyl)-2,4,5-trimethylthiophene 

Relevant articles and documents

A new thiophene synthesis

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Synthesis and structure of novel disulfide(trisulfide)-containing thiophenes

A novel trisulfide-containing thiophene, 1,5-dihydrothieno[3,4-e][1,2,3] trithiepine (5), and a disulfide analogue, 1,4-dihydrothieno[3,4-d][1,2]dithiine (4), were designed and synthesized. All the compounds were characterized by FT-IR, NMR, Raman, MS, an

Equilibrium studies of thiophene exchange in (η-thiophene)Ru(η-C5H5)+: A model for thiophene adsorption on hydrodesulfurization catalysts

Equilibrium constants (K′) for the displacement of the π- (i.e., η5-) thiophene (T) ligand in CpRu(T)+ by methyl-substituted thiophenes (Th′), CpRu(T)+ + Th′ ? CpRu(Th′)+ + T, increase as the number of methyl groups in Th′ increases: T (1) 2T (35) 2T (50) 3T(200) 3T (300) 4T (1300). The K′ values increase by a factor of approximately 6 for each methyl in the thiophene (Th′). That thiophenes also adsorb to a Co-Mo/Al2O3 hydrodesulfurization (HDS) catalyst more strongly as the number of methyl groups in the thiophene increases suggests that they are also π-bonded to the catalyst surface. The results suggest that trends in rates of deuterium exchange and hydrodesulfurization on HDS catalysts for a series of methyl-substituted thiophenes are determined by their relative strengths of adsorption to the catalyst surface.