Description

4-Butyl-2-Methylthiazole CAS NO 41981-69-5 is a high-purity, volatile heterocyclic compound belonging to the thiazole family, valued for its potent organoleptic properties. It serves as a critical flavor and fragrance intermediate, imparting green, earthy, and nutty notes to complex formulations. This compound is essential for manufacturers in the flavor & fragrance, food & beverage, and fine chemical synthesis industries seeking to create sophisticated sensory profiles.

Application

• Flavor & Fragrance (F&F) Ingredient: A key building block for creating and enhancing green, earthy, and nutty flavor notes in food, beverages, and savory applications.
• Perfumery: Used as a fragrance component in fine perfumes, cosmetics, and personal care products to add natural, vegetative accords.
• Food Additive Synthesis: Employed as an intermediate in the synthesis of complex flavoring agents and aroma chemicals for processed foods.
• Agrochemical Intermediates: Serves as a precursor in the synthesis of certain pesticides and herbicides, leveraging its heterocyclic structure.
• Pharmaceutical Research: Utilized as a chemical building block in medicinal chemistry for the development of novel therapeutic agents.
• Fine Chemical Manufacturing: Acts as a versatile intermediate for the production of other specialty thiazole derivatives.

Basic Information

Product Name	4-Butyl-2-Methylthiazole
CAS No.	41981-69-5
Molecular Formula	C8H13NS
Molecular Weight	155.26 g/mol
Synonyms	2-Methyl-4-butylthiazole; 4-Butyl-2-methyl-1,3-thiazole; FEMA 3615; 2-Methyl-4-n-butylthiazole; Butyl Methyl Thiazole; 1,3-Thiazole, 4-butyl-2-methyl-; Thiazole, 4-butyl-2-methyl-
EINECS	255-615-5

Quality Control

Our 4-Butyl-2-Methylthiazole is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with industry standards for flavor and fragrance ingredients, including relevant FEMA and FCC guidelines where applicable.

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 kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability, though short-term storage at controlled room temperature (15-25°C) is acceptable.

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
Related Substances (GC)	Total impurities ≤ 2.0%

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