Skip to Content
Merck
CN

W439400

2,4,5-Trimethyloxazole

99%, FG

Synonym(s):

Trimethyloxazole

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

Empirical Formula (Hill Notation):
C6H9NO
CAS Number:
Molecular Weight:
111.14
FEMA Number:
4394
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
13.169
EC Number:
243-952-4
NACRES:
NA.21
MDL number:
Organoleptic:
green; nutty; sweet
Grade:
FG
Biological source:
synthetic
Food allergen:
no known allergens
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

assay

99%

SMILES string

Cc1nc(C)c(C)o1

InChI key

ZRLDBDZSLLGDOX-UHFFFAOYSA-N

InChI

1S/C6H9NO/c1-4-5(2)8-6(3)7-4/h1-3H3

biological source

synthetic

grade

FG

reg. compliance

EU Regulation 1334/2008 & 872/2012

refractive index

n20/D 1.442 (lit.)

bp

133-134 °C/760 mmHg (lit.)

density

0.957 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

green; nutty; sweet

Quality Level

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

2,4,5-Trimethyloxazole is an important heterocyclic flavor compound that generally occurs in coffee and cocoa. It is reported to be present in meat and roasted peanuts due to its formation by the reaction between 2,3-butanedione and alanine or cysteine due to Strecker′s degradation.

Application

Possible applications: Chocolate, Dutch cocoa, coffee, various savory meaty flavors, malt and toasted bread.

Biochem/physiol Actions

Odor at 1.0%: Slight pyridine-like, roasted vegetative, toasted Dutched cocoa background with a slight nutty nuance.
Taste at 1ppm: Sweet roasted cocoa, coffee, chocolate, slightly seared savory beef, proteinous with green vegetative nuances.

Other Notes

Natural occurrence: Heated beef, cocoa, cooked pork, French fries, autolyzed yeast, cooked egg and fried chicken.

pictograms

Flame

signalword

Warning

hcodes

Hazard Classifications

Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

91.4 °F - closed cup

flash_point_c

33 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Oxazoles and oxazolines in foods.
Maga JA.
Journal of Agricultural and Food Chemistry, 26(5), 1049-1050 (1978)
Formation of oxazolines and oxazoles in Strecker degradation of DL-alanine and L-cysteine with 2, 3-butanedione.
Ho CT & Hartman GJ.
Journal of Agricultural and Food Chemistry, 30(4), 793-794 (1982)
Gerard Mosciano
Perfumer & Flavorist, 34 (1), 58-59 (2009)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service