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1-(5-Methyl-2-thienyl)ethan-1-one

1-(5-Methyl-2-thienyl)ethan-1-one structure

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

Molecular Weight:: 140.2

MDL Number:: MFCD00014529

MOL File:: 13679-74-8.mol

MSDS File:: SDS

Last updated:2023-05-25 18:01:19

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1-(5-Methyl-2-thienyl)ethan-1-one Properties

Melting point	24-28 °C(lit.)
Boiling point	65-67 °C1 mm Hg(lit.)
Density	1.106 g/mL at 25 °C(lit.)
FEMA	4643 \| 2-ACETYL-5-METHYLTHIOPHENE
refractive index	n20/D 1.561(lit.)
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)
Substances Added to Food (formerly EAFUS)	2-ACETYL-5-METHYLTHIOPHENE
EWG's Food Scores	1
FDA UNII	2HS3I278W9
NIST Chemistry Reference	2-Acetyl-5-methylthiophene(13679-74-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302

Precautionary statements

P301+P312a-P330-P501a-P264-P270-P301+P312+P330-P501

Hazard Codes

Xn,Xi

Risk Statements

20/21/22

Safety Statements

36/37-22

RIDADR

UN 3335

WGK Germany

RTECS

OB4972000

Hazard Note

Irritant

HazardClass

STENCH

HS Code

29349990

NFPA 704

	0
2		0

1-(5-Methyl-2-thienyl)ethan-1-one price More Price(37)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	S552038	METHYL 5-METHYL-2-THIENYL KETONE AldrichCPR	13679-74-8	250mg	$179	2024-03-01	Buy
Sigma-Aldrich	533610	2-Acetyl-5-methylthiophene 98%	13679-74-8	25g	$421	2024-03-01	Buy
TCI Chemical	A1181	2-Acetyl-5-methylthiophene >96.0%(GC)	13679-74-8	5g	$60	2024-03-01	Buy
Alfa Aesar	A11282	2-Acetyl-5-methylthiophene, 98%	13679-74-8	5g	$51.65	2024-03-01	Buy
Alfa Aesar	A11282	2-Acetyl-5-methylthiophene, 98%	13679-74-8	25g	$187.65	2024-03-01	Buy

Product number	Packaging	Price	Buy
S552038	250mg	$179	Buy
533610	25g	$421	Buy
A1181	5g	$60	Buy
A11282	5g	$51.65	Buy
A11282	25g	$187.65	Buy

1-(5-Methyl-2-thienyl)ethan-1-one Chemical Properties,Uses,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

2-BROMO-1-(5-METHYL-THIOPHEN-2-YL)-ETHANONE 4-Chloro-5-Methylthiophen-2-yl hydrogen carbonate 1-(4-Chloro-5-methylthiophen-2-yl)ethan-1-one 1-(4-Bromo-5-methyl-thiophen-2-yl)-ethanone

1-(5-Methyl-2-thienyl)ethan-1-one Suppliers

Global( 200)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32480	60
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Xi'an Kono chem co., Ltd.,	029-86107037 13289246953	info@konochemical.com	China	2995	58
Chongqing Chemdad Co., Ltd	+86-023-61398051 +8613650506873	sales@chemdad.com	China	39916	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63711	58
Wuhan Chemwish Technology Co., Ltd	027-67849912	sales@chemwish.com	CHINA	10828	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49390	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-87569265 +86-18612256290	1056@dideu.com	China	3581	58
SIMAGCHEM CORP	+86-13806087780	sale@simagchem.com	China	17367	58

Supplier	Advantage
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Xi'an Kono chem co., Ltd.,	58
Chongqing Chemdad Co., Ltd	58
Alchem Pharmtech,Inc.	58
Wuhan Chemwish Technology Co., Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
Shaanxi Dideu Medichem Co. Ltd	58
SIMAGCHEM CORP	58

View Lastest Price from 1-(5-Methyl-2-thienyl)ethan-1-one manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-03-29	1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8	US $1.10 / g	1g	99.00%	100 Tons	Dideu Industries Group Limited
2021-07-20	1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8	US $1.00-1.00 / KG	1g	99%	50tons	Shaanxi Dideu Medichem Co. Ltd
2019-07-06	1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8	US $1.00 / KG	1G	98%	100kg	Career Henan Chemical Co

1-(5-Methyl-2-thienyl)ethan-1-one
13679-74-8
US $1.10 / g
99.00%
Dideu Industries Group Limited

1-(5-Methyl-2-thienyl)ethan-1-one
13679-74-8
US $1.00-1.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

1-(5-Methyl-2-thienyl)ethan-1-one
13679-74-8
US $1.00 / KG
98%
Career Henan Chemical Co

1-(5-Methyl-2-thienyl)ethan-1-one Spectrum

1-(5-Methyl-2-thienyl)ethan-1-one(13679-74-8)MS 1-(5-Methyl-2-thienyl)ethan-1-one(13679-74-8)¹HNMR 1-(5-Methyl-2-thienyl)ethan-1-one(13679-74-8)¹³CNMR 1-(5-Methyl-2-thienyl)ethan-1-one(13679-74-8)IR1

13679-74-8(1-(5-Methyl-2-thienyl)ethan-1-one)Related Search:

1-(5-Methyl-2-thienyl)ethan-1-one 2-Methyl-5-propionylthiophene 2-ACETYL-3-AMINO-5-PHENYLTHIOPHENE 2-ACETYL-5-CYANOTHIOPHENE 5-Acetylthiophene-2-carboxylic acid

1-(3-methyl-2-thienyl)ethan-1-on 1-(4-methyl-2-thienyl)ethan-1-one 2-Acetylthiophene 1-[3-AMINO-5-(4-CHLOROPHENYL)-2-THIENYL]ETHAN-1-ONE 2-ACETYL-3-AMINO-5-T-BUTYLTHIOPHENE

1-{5-[3-(DIMETHYLAMINO)PROP-1-YNYL]-2-THIENYL}ETHAN-1-ONE 1-(5-ETHYL-THIOPHEN-2-YL)-ETHANONE 3-(2-ACETYL-5-TERT-BUTYL-THIOPHEN-3-YLCARBAMOYL)-ACRYLIC ACID N-(2-ACETYL-5-TERT-BUTYL-THIOPHEN-3-YL)-SUCCINAMIC ACID 1-(3,5-DIMETHYL-2-THIENYL)ETHAN-1-ONE

2-[5-(2-CHLOROACETYL)-2-THIENYL]ACETIC ACID N1-(2-ACETYL-5-PHENYLTHIEN-3-YL)-2-CHLOROACETAMIDE N1-[2-ACETYL-5-(TERT-BUTYL)-3-THIENYL]-2,3,3-TRICHLOROACRYLAMIDE

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1-(5-methyl-2-thienyl)ethan-1-one 2-Acetyl-5-Methylthiophene, 98% 25GR 1-(5-methyl-2-thienyl)-ethanon 1-(5-Methyl-2-thienyl)ethanone 1-(5-Methyl-thiophen-2-yl)-ethanone 5-Methyl-2-acetylthiophene Ethanone, 1-(5-methyl-2-thienyl)- Ketone, methyl 5-methyl-2-thienyl ketone,methyl5-methyl-2-thienyl Methyl 5-methyl-2-thienyl ketone -Methyl-5-acetylthiophene methylthienylcetone Thiophene, 2-acetyl-5-methyl 2-ACETYL-5-METHYLTHIOPHENE 2-Acetyl-5-methylthiophene,98% 1-(5-methyl-2-thiophenyl)ethanone 2-Acetyl-5-methylthiophene > 1-(5-Methyl-2-thienyl)ethan-1-one ISO 9001：2015 REACH 13679-74-8 Thiophenes Heterocyclic Building Blocks KETONE Building Blocks Building Blocks Heterocyclic Building Blocks Thiophenes Thiophene&Benzothiophene Thiophens