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Name	2-Ethyl-4-methyl thiazole	EINECS	239-757-9
CAS No.	15679-12-6	Density	1.049 g/cm³
PSA	41.13000	LogP	2.01390
Solubility	N/A	Melting Point	N/A
Formula	C₆H₉NS	Boiling Point	173.3 °C at 760 mmHg
Molecular Weight	127.21	Flash Point	54.4 °C
Transport Information	UN 1993 3/PG 3	Appearance	clear colorless or pale yellow to light brown liquid
Safety	16-26-36	Risk Codes	10
Molecular Structure		Hazard Symbols	Xi
Synonyms	2-Ethyl-4-methylthiazole;	Article Data	9

2-Ethyl-4-methyl thiazole Synthetic route

: 45534-10-9
2-ethenyl-4-methyl-1,3-thiazole

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

Conditions

Conditions	Yield
Hydrogenation;

: 41803-21-8
2-ethyl-4-methyl-3-thiazoline

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

Conditions

Conditions	Yield
With ethanol; iron(III) chloride
With sulfur

: 7533-07-5
1-(4-methyl-1,3-thiazol-2-yl)ethan-1-one

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

: 631-58-3
thiopropanamide

: 78-95-5
chloroacetone

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

Conditions

Conditions	Yield
With ethanol

: 541-58-2
2,4-dimethylthiazole

: 80-48-8
methyl p-toluene sulfonate

A: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

B: 13623-11-5
2,4,5-trimethylthiazole

Conditions

Conditions	Yield
(i) nBuLi, Et2O, (ii) /BRN= 609209/; Multistep reaction;

: 802294-64-0
propionic acid

: 78-95-5
chloroacetone

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

Conditions

Conditions	Yield
Stage #1: propionic acid With dmap; dacarbazine; Rink resin Acylation; amidation; Stage #2: With Lawessons reagent In tetrahydrofuran for 4h; thioamidation; Heating; Stage #3: chloroacetone In tetrahydrofuran for 16h; Cyclization; Heating;

: 333385-00-5
methylhydroxyethyl thiazole

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: KOH / 200 °C 2: Hydrogenation View Scheme

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

: 573-17-1
9-bromophenanthrene

: 2-ethyl-4-methyl-5-(phenanthren-9-yl)thiazole

Conditions

Conditions	Yield
With potassium acetate; palladium diacetate In N,N-dimethyl acetamide at 150℃; for 16h; Inert atmosphere; Schlenk technique;	97%

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

: 10342-83-3
4'-Bromopropiophenone

: 1-(4-(2-ethyl-4-methylthiazol-5-yl)phenyl)propan-1-one

Conditions

Conditions	Yield
With palladium 10% on activated carbon; potassium acetate In i-Amyl alcohol at 150℃; for 16h; Solvent; Inert atmosphere; Green chemistry;	96%

: 15679-12-6
2-ethyl-4-methyl-1,3-thiazole

: 623-00-7
4-bromobenzenecarbonitrile

: 4-(2-ethyl-4-methylthiazol-5-yl)benzonitrile

Conditions

Conditions	Yield
With palladium 10% on activated carbon; potassium acetate In i-Amyl alcohol at 150℃; for 16h; Solvent; Inert atmosphere; Green chemistry;	96%

2-Ethyl-4-methyl thiazole Chemical Properties

Molecular Formula: C₆H₉NS

Formula Weight: 127.21
bp of 2-ethyl-4-methylthiazole (15679-12-6): 161-162^°C(lit.)
density : 1.026 g/mL at 25 °C(lit.)
refractive index : n20/D 1.505(lit.)
FEMA : 3680
Fp of 2-ethyl-4-methylthiazole (15679-12-6): 130 °F
Physical State: clear to pale yellow liquid
Odor of 2-ethyl-4-methylthiazole (15679-12-6): stench

2-Ethyl-4-methyl thiazole Uses

2-ethyl-4-methylthiazole (15679-12-6) is used as thiol flavouring substances, also is used in flavorings (coffee, cocoa, nutty).

2-Ethyl-4-methyl thiazole Toxicity Data With Reference

LD₅₀/LC₅₀: Not available.
Carcinogenicity: 2-ethyl-4-methylthiazole (15679-12-6) - Not listed by ACGIH, IARC, or NTP.

2-Ethyl-4-methyl thiazole Safety Profile

Hazard Codes : Xi (Irritant)
Risk Statements : 10-36/37/38 (Flammable; Irritating to eyes, respiratory system and skin)
Safety Statements : 16-26-36 (Keep away from sources of ignition - No smoking; In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Wear suitable protective clothing)
RIDADR : UN 1993 3/PG 3
WGK Germany : 3
Hazard Note : Irritant
HazardClass : 3
PackingGroup : III

2-Ethyl-4-methyl thiazole Standards and Recommendations

ASSAY: 99.0% min
SPECIFIC GRAVITY: 1.02-1.03

2-Ethyl-4-methyl thiazole Specification

Storage of 2-ethyl-4-methylthiazole (15679-12-6): Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from sources of ignition. Keep away from heat, sparks, and flame. Flammables-area.

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