1-(5-Methyl-2-thienyl)ethan-1-one
- Product Name
- 1-(5-Methyl-2-thienyl)ethan-1-one
- CAS No.
- 13679-74-8
- Chemical Name
- 1-(5-Methyl-2-thienyl)ethan-1-one
- Synonyms
- methylthienylcetone;-Methyl-5-acetylthiophene;5-Methyl-2-acetylthiophene;2-ACETYL-5-METHYLTHIOPHENE;Thiophene, 2-acetyl-5-methyl;1-(5-Methyl-2-thienyl)ethanone;1-(5-methyl-2-thienyl)-ethanon;2-Acetyl-5-methylthiophene,98%;2-Acetyl-5-methylthiophene >ketone,methyl5-methyl-2-thienyl
- CBNumber
- CB8245960
- Molecular Formula
- C7H8OS
- Formula Weight
- 140.2
- MOL File
- 13679-74-8.mol
1-(5-Methyl-2-thienyl)ethan-1-one Property
- Melting point:
- 24-28 °C(lit.)
- Boiling point:
- 65-67 °C1 mm Hg(lit.)
- Density
- 1.106 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.561(lit.)
- FEMA
- 4643 | 2-ACETYL-5-METHYLTHIOPHENE
- Flash point:
- >230 °F
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- form
- Low Melting Crystalline Mass, Powder or Crystals
- Specific Gravity
- 1.119
- color
- White to pale yellow
- Odor
- at 1.00 % in propylene glycol. sweet spicy honey hawthorn almond acacia hyacinth caramellic graham cracker
- Odor Type
- spicy
- Sensitive
- Light Sensitive
- JECFA Number
- 2107
- BRN
- 110854
- LogP
- 2.04
- CAS DataBase Reference
- 13679-74-8(CAS DataBase Reference)
- NIST Chemistry Reference
- 2-Acetyl-5-methylthiophene(13679-74-8)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P330Rinse mouth.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- S552038
- Product name
- METHYL 5-METHYL-2-THIENYL KETONE
- Purity
- AldrichCPR
- Packaging
- 250mg
- Price
- $179
- Updated
- 2024/03/01
- Product number
- 533610
- Product name
- 2-Acetyl-5-methylthiophene
- Purity
- 98%
- Packaging
- 25g
- Price
- $421
- Updated
- 2024/03/01
- Product number
- A1181
- Product name
- 2-Acetyl-5-methylthiophene
- Purity
- >96.0%(GC)
- Packaging
- 5g
- Price
- $60
- Updated
- 2024/03/01
- Product number
- A11282
- Product name
- 2-Acetyl-5-methylthiophene, 98%
- Packaging
- 5g
- Price
- $51.65
- Updated
- 2024/03/01
- Product number
- A11282
- Product name
- 2-Acetyl-5-methylthiophene, 98%
- Packaging
- 25g
- Price
- $187.65
- Updated
- 2024/03/01
1-(5-Methyl-2-thienyl)ethan-1-one Chemical Properties,Usage,Production
Chemical Properties
white to light yellow crystal powder
Uses
2-Acetyl-5-methylthiophene may be used in the preparation of:
- 2-ethyl-5-methylthiophene
- (5-methylthiophen-2-yl)glyoxal
- (2E)-1-(5-methylthiophen-2-yl)-3-(pyridin-3-yl)prop-2-en-1-one
- ethyl 3-(5-methylthiophen-2-yl)-3-oxopropanoate
Definition
ChEBI: 2-acetyl-5-methylthiophene is a thiophene that is substituted by acetyl and methyl groups at positions 2 and 5, respectively. It has a role as a flavouring agent. It is an aromatic ketone, a member of thiophenes and a methyl ketone.
General Description
2-Acetyl-5-methylthiophene is a volatile organic compound formed during the reaction between L-cysteine and dihydroxyacetone in glycerine or triglyceride solvent system. It can be prepared by reacting 2-methylthiophene with acetic anhydride. 2-Acetyl-5-methylthiophene undergoes palladium-catalyzed cross-coupling reaction with aryl bromides to form C-4 arylated product. It reacts with 1,2-bis(5-formyl-2-methylthiophen-3-yl)cyclopentene via Aldol condensation to form a chalcone with photochromic property. The standard molar enthalpies of combustion, formation and vaporization of 2-acetyl-5-methylthiophene are 4341.9 ± 1.8kJ/mol, 158.0 ± 2.1kJ/mol and 62.0 ± 2.6kJ/mol, respectively.
Safety Profile
A poison by intraperitoneal route. A flammable liquid. When heated to decomposition it emits toxic vapors of SOx.
1-(5-Methyl-2-thienyl)ethan-1-one Preparation Products And Raw materials
Raw materials
Preparation Products
1-(5-Methyl-2-thienyl)ethan-1-one Suppliers
- Tel
- --
- Fax
- --
- georganics@nextra.sk
- Country
- Slovakia
- ProdList
- 613
- Advantage
- 50
- Tel
- --
- Fax
- --
- chemcontrol@nextra.sk
- Country
- Slovakia
- ProdList
- 6700
- Advantage
- 60
View Lastest Price from 1-(5-Methyl-2-thienyl)ethan-1-one manufacturers
- Product
- 1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 10ton
- Release date
- 2024-07-20
- Product
- 1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8
- Price
- US $1.00/KG
- Min. Order
- 1G
- Purity
- 98%
- Supply Ability
- 100kg
- Release date
- 2018-08-12