W439400

2,4,5-Trimethyloxazole

99%, FG

• Synonym(s): Trimethyloxazole
• Empirical Formula (Hill Notation): C₆H₉NO
• CAS Number: 20662-84-4
• Molecular Weight: 111.14
• FEMA Number: 4394
• EC Number: 243-952-4
• MDL number: MFCD00005308
• UNSPSC Code: 12164502
• PubChem Substance ID: 329830710
• Flavis number: 13.169
• NACRES: NA.21
• organoleptic: green; nutty; sweet
• grade: FG
• biological source: synthetic
• food allergen: no known allergens

Properties

• biological source: synthetic
• Quality Level: 400
• grade: FG
• reg. compliance: EU Regulation 1334/2008 & 872/2012
• assay: 99%
• 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

Description

General description

2,4,5-Trimethyloxazole is an important heterocyclic flavor compound that generally occurs in coffee and cocoa.[1] 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.[2]

Application

Possible applications: Chocolate, Dutch cocoa, coffee, various savory meaty flavors, malt and toasted bread.[3]

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.[3]

Other Notes

Natural occurrence: Heated beef, cocoa, cooked pork, French fries, autolyzed yeast, cooked egg and fried chicken.[3]

Safety Information

• pictograms: GHS02
• signalword: Warning
• hcodes: H226
• Hazard Classifications: Flam. Liq. 3
• Storage Class: 3 - Flammable liquids
• wgk_germany: 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