- Tianqiao District, Jinan City, Shandong Province, China
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Cas 2882-20-4/2-Methyl-3 -methylthiopyrazine is a sulfur-containing heterocyclic synthetic flavoring agent with the molecular formula C₆H₈N₂S and a molecular weight of 140.21. At room temperature, it is a colorless to pale yellow transparent liquid with a strong green pepper aroma and a nutty flavor reminiscent of roasted almonds and hazelnuts. It is slightly soluble in water and readily soluble in organic solvents such as ethanol and oils. As an important food flavoring agent, it is widely used in the food, beverage, tobacco, and personal care industries, and is one of the most widely used varieties among pyrazine-based flavorings.
| Item | Specification |
| Melting Point | N/A |
| Boiling Point | 213–214 °C (lit.) |
| Density | 1.15 g/mL at 25 °C (lit.) |
| Flash Point | 98.9°C |
| Vapor Pressure | 0.2 mmHg（25°C) |
| Refractive Index | n20/D 1.585(lit.) |
| Odor | Roasted meat, nutty (0.10% propylene glycol solution) |
| Solubility | Slightly soluble in water; readily soluble in organic solvents such as ethanol, diethyl ether, and oils and fats. |
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