4,5-Dimethylthiazole
- 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
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 |
n |
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 | 3 | |||||||||
RTECS | XJ4380000 | |||||||||
HazardClass | 3 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29349990 | |||||||||
NFPA 704 |
|
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 |
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
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 7786 | 58 |
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 | 2967 | 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 |
View Lastest Price from 4,5-Dimethylthiazole manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2024-04-22 | 4,5-Dimethylthiazole
3581-91-7
|
US $32.00-1.10 / kg | 1kg | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | ||
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 |
- 4,5-Dimethylthiazole
3581-91-7
- US $32.00-1.10 / kg
- 99%
- Henan Fengda Chemical 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