I. Basic information
1. Basic name
Chinese name: 2-[[2-(ethylthio)ethyl]thio]-N-[2-[[2-(ethylthio)ethyl]thio]ethyl]ethanamine
English name: 2-[[2-(ethylthio)ethyl]thio]-N-[2-[[2-(ethylthio)ethyl]thio]ethyl]ethanamine
Alias: bis(2-(2-ethylthioethylthio)ethyl)amine; polysulfide amine compounds
2. Chemical formula related
Molecular formula: C₁₂H₂₈N₂S₄
Molecular weight: 328.63 g/mol
CAS registration number: needs to be verified through an authoritative database (similar to polysulfide amine compounds, the CAS number needs to be specifically confirmed)
II. Physical and chemical properties
1. Appearance and properties
Normal state: colorless to light yellow viscous liquid, long-term exposure to air may deepen the color due to sulfide oxidation;
Smell: has the characteristic smell of sulfide compounds (similar to garlic or rotten eggs), the smell is strong.
2. Physical constants
Boiling point: about 180-190℃/0.5 mmHg (distilled under reduced pressure to avoid high temperature decomposition);
Density: 1.10-1.15 g/cm³ (25℃), slightly heavier than water;
Refractive index: n₂₀ᴰ 1.540-1.550 (refer to similar polysulfide amine data);
Solubility: easily soluble in organic solvents such as ethanol, acetone, and dichloromethane, slightly soluble in water, and miscible with polar organic solvents.
3. Chemical properties
Reactivity:
Thioether bond (-S-):
Easily oxidized to form sulfoxide (-SO-) or sulfone (-SO₂-), oxidants such as H₂O₂, potassium persulfate, etc. can initiate the reaction;
The lone pair of electrons on the sulfur atom makes it nucleophilic, and it can undergo alkylation reaction with halogenated hydrocarbons, or form coordination compounds with metal ions;
Amine group (-NH-):
Weakly alkaline, can form salts with acids (such as hydrochloride, sulfate);
Amine nitrogen atom can participate in nucleophilic substitution and acylation reactions (such as reacting with acyl chloride to form amide);
Stability: Stable at room temperature, but avoid contact with strong oxidants and strong acids; high temperature or long-term light exposure may cause the thioether bond to break or oxidize.