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)

form 

clear liquid

pka

3.24±0.10(Predicted)

color 

Light orange to Yellow to Green

Specific Gravity

0.995

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ChEBI: A 1,3-thiazole in which the hydrogen at position 2 has been replaced by an isobutyl group.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