Description

2,5-Diethyl-3,6-Dimethylpyrazine CAS NO 18903-30-5 is a high-purity alkylated pyrazine compound valued for its potent and complex organoleptic properties. This specialty chemical is a key building block for creating sophisticated flavor and fragrance profiles, particularly roasted, nutty, and earthy notes. It is essential for flavorists and perfumers in the food & beverage, flavor & fragrance, and cosmetic industries seeking to develop authentic and high-impact sensory experiences.

Application

• Flavor & Fragrance (F&F) Industry: A primary aroma chemical used as a key component in the creation of roasted, nutty, coffee, cocoa, meaty, and savory flavor profiles for processed foods, snacks, and beverages.
• Perfumery: Employed in fine fragrance and functional perfume compositions to impart unique earthy, woody, or tobacco-like nuances and enhance the complexity of scent accords.
• Food & Beverage Manufacturing: Used in the formulation of savory flavorings, reaction flavors, and seasoning blends to replicate authentic cooked and roasted characteristics.
• Cosmetics & Personal Care: Incorporated as a fragrance ingredient in products such as soaps, lotions, and creams where specific, sophisticated scent notes are desired.
• Research & Development: Serves as a reference standard and a synthetic intermediate in organic synthesis and analytical chemistry for academic and industrial R&D laboratories.
• Tobacco Flavoring: Utilized to enhance and modify the flavor profile of tobacco products, contributing desirable roasted and nutty characteristics.

Basic Information

Product Name	2,5-Diethyl-3,6-Dimethylpyrazine
CAS No.	18903-30-5
Molecular Formula	C10H16N2
Molecular Weight	164.25 g/mol
Synonyms	2,5-Diethyl-3,6-dimethyl-1,4-diazine; 3,6-Dimethyl-2,5-diethylpyrazine; 2,5-Diethyl-3,6-dimethylpyrazine; Pyrazine, 2,5-diethyl-3,6-dimethyl-; FEMA 3910; 2,5-Diethyl-3,6-dimethyl-1,4-diazabenzene; 2,5-Diethyl-3,6-dimethylpyrazine (mixture of isomers)
EINECS	242-680-9

Quality Control

Our 2,5-Diethyl-3,6-Dimethylpyrazine is manufactured under strict quality management systems. Each batch is analyzed to ensure it meets the high-purity standards required for flavor and fragrance applications. Specifications typically conform to industry benchmarks such as FCC (Food Chemicals Codex) and FEMA (Flavor and Extract Manufacturers Association) guidelines where applicable. A detailed Certificate of Analysis (COA) confirming identity, purity, and organoleptic quality is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are securely sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.495 - 1.505
Specific Gravity (20/20°C)	0.950 - 0.970
Solubility	Miscible with alcohol and most organic solvents

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.