2884-14-2

Basic information

• Product Name: 2-Methylthio-5-methylpyrazine
• Synonyms: Pyrazine, 2-methyl-5-(methylthio)-;2-methyl-5-methylsulfanylpyrazine
• CAS NO: 2884-14-2
• Molecular Formula: C6H8N2S
• Molecular Weight: 140.2061
• Mol File: 2884-14-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 223.8 °C at 760 mmHg
• Flash Point: 89.4 °C
• Appearance: /
• Density: 1.14 g/cm³
• CAS DataBase Reference: 2-Methylthio-5-methylpyrazine(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Methylthio-5-methylpyrazine(2884-14-2)
• EPA Substance Registry System: 2-Methylthio-5-methylpyrazine(2884-14-2)

Safety Data

• Hazardous Substances Data: 2884-14-2(Hazardous Substances Data)

Usage

General Description

2-Methylthio-5-methylpyrazine is an organic compound with the chemical formula C7H10N2S. It is a colorless to pale yellow liquid with a strong, pungent odor. This chemical is commonly used as a flavoring agent in the food industry, adding a roasted, nutty, and earthy aroma to various products, including snacks, baked goods, and beverages. It is naturally present in foods such as roasted coffee, cocoa, and roasted peanuts. 2-Methylthio-5-methylpyrazine is also used in the production of fragrances and perfumes due to its unique and distinctive scent. However, exposure to high concentrations of this chemical may cause irritation to the skin, eyes, and respiratory system, so it is important to handle it with caution.

Upstream product

• 109-08-0 2-Methylpyrazine 
• 5188-07-8 sodium thiomethoxide 

Relevant articles and documents

Production method of 2-methyl-3(5 or 6)-methylthio pyrazine

The invention discloses a production method of 2-methyl-3(5 or 6)-methylthio pyrazine. The method comprises the following steps: adding solvents dichloroethane and triethylamine into a reaction kettle, sealing the reaction kettle, introducing chlorine to control the pressure in the kettle at 0.02-0.03 MPa, pumping a methylpyrazine solution into the reaction kettle by using a metering pump, controlling the temperature at 45-60 DEG C, reacting, and transferring reaction liquid(containing the chlorine)in the kettle into a dichloroethane turnover tank through filter pressing for recycling after the reaction is finished; dissolving the residual 2-methyl-3(5 or 6)-chloropyrazine hydrochloride solid in the reaction kettle with water, adjusting the neutrality, and layering to obtain a 2-methyl-3(5or 6)-chloropyrazine crude product; and dropwise adding thechloropyrazine crude product is into sodium methyl mercaptide, performing reflux reaction , and after reaction liquid is extracted, adding an aid into an organic phase to generate a hydrochloride for separating the non-pyrazine product from the product to greatly improve the aroma quality of the obtained product. The product grade is improved, and the whole production process is safe and environmentally friendly.