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1. Basic Identification Information
| Parameter | English Specification/Value |
|---|---|
| IUPAC Name | 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea |
| Common Name(s) | Triclocarban; TCC; 3,4,4'-Trichlorocarbanilide; Triclocarbanilide |
| CAS Registry Number | 101-20-2 |
| EC/EINECS Number | 202-924-2 |
| Molecular Formula | C₁₃H₉Cl₃N₂O |
| Molecular Weight | 315.58 g/mol |
| Chemical Class | Halogenated urea derivative; broad-spectrum antibacterial agent; deodorant; preservative |
2. Physicochemical Properties
| Property Category | Specific Parameter | Specification/Value |
|---|---|---|
| Structural Features | Functional Groups | Urea linkage (-NH-CO-NH-); three chlorine substituents (-Cl) on two phenyl rings |
| Physical Appearance | State & Color | White to off-white crystalline powder; odorless or faint aromatic odor |
| Melting Point | 250–255 °C (lit.) | |
| Boiling Point | Decomposes before boiling (decomposes above 260 °C) | |
| Density (25 °C) | 1.48 g/cm³ (crystalline form) | |
| Solubility | Polar Solvents | Slightly soluble in ethanol (1 g/100 mL), propylene glycol; insoluble in water (<0.0001 g/100 mL at 25 °C) |
