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4,5-Dimethylthiazole

4,5-Dimethylthiazole structure

CAS No.: 3581-91-7

Chemical Name:: 4,5-Dimethylthiazole

Synonyms: Thiazole, 4,5-dimethyl-;FEMA 3274;FEMA NUMBER 3274;4,5-dimethyl-thiazol;2,2-Dimethylthiazole;4,5-DIMETHYLTHIAZOLE;4,5-Dimethylthiazole>4,5-Dimethylthiazole,98%;4,5-Dimethylthiazole ,99%;4,5-DIMETHYL-1,3-THIAZOLE

CBNumber:: CB3246371

Molecular Formula:: C5H7NS

Molecular Weight:: 113.18

MDL Number:: MFCD00005336

MOL File:: 3581-91-7.mol

MSDS File:: SDS

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

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4,5-Dimethylthiazole Properties

Melting point	83-84 C
Boiling point	158 °C/742 mmHg (lit.)
Density	1.07 g/mL at 25 °C (lit.)
FEMA	3274 \| 4,5-DIMETHYLTHIAZOLE
refractive index	n20/D 1.521(lit.)
Flash point	124 °F
storage temp.	Sealed in dry,Room Temperature
form	solid
pka	pK1:3.73 (25°C,μ=0.1)
Specific Gravity	1.070
Odor	at 0.10 % in dipropylene glycol. roasted nutty fishy green boiled shrimp
Odor Type	fishy
JECFA Number	1035
BRN	105694
LogP	2.09
CAS DataBase Reference	3581-91-7(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)	4,5-DIMETHYLTHIAZOLE
EWG's Food Scores	1
FDA UNII	U3RP5I088G
NIST Chemistry Reference	Thiazole, 4,5-dimethyl-(3581-91-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS05,GHS07

Signal word

Danger

Hazard statements

H226-H302-H315-H318-H335

Precautionary statements

P210-P233-P280-P301+P312-P303+P361+P353-P305+P351+P338

Hazard Codes

Xn,Xi,F

Risk Statements

10-22-37/38-41-36/37/38

Safety Statements

16-26-39-37/39-36/37/39

RIDADR

UN 1993 3/PG 3

WGK Germany

RTECS

XJ4380000

HazardClass

PackingGroup

III

HS Code

29349990

NFPA 704

	2
2		0

4,5-Dimethylthiazole price More Price(31)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	W327409	4,5-Dimethylthiazole ≥97%, FG	3581-91-7	sample	$89.3	2024-03-01	Buy
TCI Chemical	D2142	4,5-Dimethylthiazole >98.0%(GC)	3581-91-7	5g	$26	2024-03-01	Buy
TCI Chemical	D2142	4,5-Dimethylthiazole >98.0%(GC)	3581-91-7	25g	$79	2024-03-01	Buy
Alfa Aesar	A10785	4,5-Dimethylthiazole, 98%	3581-91-7	5g	$25.65	2024-03-01	Buy
Alfa Aesar	A10785	4,5-Dimethylthiazole, 98%	3581-91-7	25g	$105.65	2024-03-01	Buy

Product number	Packaging	Price	Buy
W327409	sample	$89.3	Buy
D2142	5g	$26	Buy
D2142	25g	$79	Buy
A10785	5g	$25.65	Buy
A10785	25g	$105.65	Buy

4,5-Dimethylthiazole Chemical Properties,Uses,Production

Chemical Properties

4,5-Dimethylthiazole is a colorless to light yellow liquid that has a roasted nutty, meaty, boiled poultry-like odor.

Occurrence

Reported found in peanuts, toasted oats, malt, peach, pork, coffee, krill, shrimp and scallops

Uses

4,5-Dimethylthiazole was used in the preparation of 4-(bromomethyl)-5-(dibromomethyl)thiazole.

Definition

ChEBI: 4,5-Dimethylthiazole is a member of thiazoles.

Preparation

From methyl-α-bromoethyl ketone; by oxidation of 2-mercaptothiazoles with hydrogen peroxide in aqueous solution; from 2-mercapto-4,5-dimethylthiazole.

Aroma threshold values

Detection: 470 ppb

Taste threshold values

Taste characteristics at 5 ppm: fishy, amine and pyridine-like with shrimp and savory nuances

Synthesis Reference(s)

The Journal of Organic Chemistry, 6, p. 764, 1941 DOI: 10.1021/jo01205a011

General Description

4,5-Dimethylthiazole is a thiazoles compounds that containing a thiazole ring substituted at positions 4 and 5 only. Radical bromination of 4,5-dimethylthiazole using N-bromosuccinimide in the presence of 2,2′-azobisisobutyronitrile yields mono-, tri- and tetrabromo compounds.

4,5-Dimethylthiazole Preparation Products And Raw materials

Raw materials

Formamide

Preparation Products

2,5-Dihydrothiophene 2-Thiazolemethanol, α-cyclopropyl-4,5-dimethyl-

4,5-Dimethylthiazole Suppliers

Global( 320)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	885	50
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
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
Jinan Finer Chemical Co., Ltd	+86-531-88989536 +86-15508631887	sales@finerchem.com	China	2966	58
Xiamen AmoyChem Co., Ltd	+86-592-6051114 +8618959220845	sales@amoychem.com	China	6387	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
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	47465	58

Supplier	Advantage
Frapp's ChemicalNFTZ Co., Ltd.	50
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Jinan Finer Chemical Co., Ltd	58
Xiamen AmoyChem Co., Ltd	58
Chongqing Chemdad Co., Ltd	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58

View Lastest Price from 4,5-Dimethylthiazole manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-10-09	4,5-Dimethylthiazole 3581-91-7	US $0.00-0.00 / KG	1KG	98%	1ton	Henan Aochuang Chemical Co.,Ltd.
2021-07-13	4,5-Dimethylthiazole 3581-91-7	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd
2021-07-09	4,5-Dimethylthiazole 3581-91-7	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd

4,5-Dimethylthiazole
3581-91-7
US $0.00-0.00 / KG
98%
Henan Aochuang Chemical Co.,Ltd.

4,5-Dimethylthiazole
3581-91-7
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

4,5-Dimethylthiazole
3581-91-7
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

4,5-Dimethylthiazole Spectrum

4,5-Dimethylthiazole(3581-91-7)MS 4,5-Dimethylthiazole(3581-91-7)¹HNMR 4,5-Dimethylthiazole(3581-91-7)¹³CNMR 4,5-Dimethylthiazole(3581-91-7)IR1 4,5-Dimethylthiazole(3581-91-7)Raman

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FEMA NUMBER 3274 FEMA 3274 4,5-dimethyl-thiazol 4 5-DIMETHYLTHIAZOLE 97+% 4,5-Dimethylthiazole,98% dimethylthiazole,4,5-dimethylthiazole 4,5-DIMETHYL THIAZOLE FEMA NO.3274 4,5-DIMETHYL-1,3-THIAZOLE 4,5-DIMETHYLTHIAZOLE 2,2-Dimethylthiazole 4,5-Dimethylthiazole ,99% 4,5-Dimethylthiazole> 4,5-Dimethylthiazole USP/EP/BP Food Additives 4, 5-Dimethylthiazole CAS 3581-91-7 Thiazole, 4,5-dimethyl- 3581-91-7 -SCHNCCH3CCH3 Building Blocks Heterocyclic Building Blocks Thiazoles thiazole Flavor Alphabetical Listings C-D Flavors and Fragrances Building Blocks Heterocyclic Building Blocks Heterocyclic Compounds Thiazoles