2-Isobutylthiazole Chemical Properties

Boiling point:

180 °C (lit.)

Density 

0.995 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.495(lit.)

FEMA 

3134 | 2-ISOBUTYLTHIAZOLE

Flash point:

136 °F

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Chloroform (Sparingly), Methanol (Slightly)

pka

3.24±0.10(Predicted)

form 

clear liquid

Specific Gravity

0.995

color 

Light orange to Yellow to Green

Odor

tomato (leaf) odor

Odor Type

green

JECFA Number

1034

BRN 

507823

LogP

2.51

CAS DataBase Reference

18640-74-9(CAS DataBase Reference)

NIST Chemistry Reference

2-Isobutylthiazole(18640-74-9)

EPA Substance Registry System

Thiazole, 2-(2-methylpropyl)- (18640-74-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-37/39

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

RTECS 

XJ5103412

Hazard Note 

Irritant

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29341000

MSDS

• Language:English Provider:2-(2-Methylpropyl)-thiazole
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-Isobutylthiazole Usage And Synthesis

Description

2-Isobutylthiazole has an odor of tomato leaves. Synthesized via cyclization of aliphatic amides with a,p-dibromo ether.

Chemical Properties

Colorless to light yellow liqui

Chemical Properties

2-Isobutylthiazole has a tomato leaf odor.

Occurrence

Reportedly identified as the odorous component of tomatoes and in processed tomatoes.

Preparation

By cyclization of aliphatic amides with α,β-dibromo ether.

Definition

ChEBI: A 1,3-thiazole in which the hydrogen at position 2 has been replaced by an isobutyl group. A food flavour component with a green note that adds the characteristics of ripe tomatoes. Used in blackcurrent, papaya, melon, raspberry, and roast beef flavours, i also enhances the flavour of fresh lime.

Aroma threshold values

Detection: 3.5 ppb

2-Isobutylthiazole(18640-74-9)Related Product Information

• Triisobutylaluminium
• Diisobutylaluminium hydride
• Thiazole
• Isobutaneboronic acid
• ISOBUTYLTRICHLOROSILANE
• 4-Methyl-2-pentanol
• 4-Methyl-2-pentanone
• Ravuconazole
• 2-Isobutyl-4-methylthiazole
• THIOSTREPTON
• 4,5-DIMETHYL-2-ISOBUTYLTHIAZOLE 98%
• 2-ISOBUTYLTHIAZOLE
• 4,5-Dimethyl-2-isobutyl-3-thiazoline
• amythiamicin D
• siomycin
• 5-Methyl-2-isobutylthiazole
• 2-Isobutylthiazole
• 2,2',2'',2'''-(1,2-Ethanediylidene)tetrakisbenzothiazole