三氯生（CAS 3380-34-5）：分子式 C12H7Cl3O2、分子量 289.5；类别 消毒剂。
| CAS号 | 3380-34-5 |
|---|---|
| 分子式 | C12H7Cl3O2 |
| 分子量 | 289.5 |
| 熔点 | 55-57 °C |
| 沸点 | 120 |
| LogP | log Kow = 4.76 |
| 应用领域 | Preservative、A halogenated phenol used in cosmetics and toilet soaps as an antiseptic and disinfectant、It is highly active against staphylococci and is used as an active agent in deodorants and antiseptic soaps |
| 类别 | 消毒剂 |
登记用途：Preservative、A halogenated phenol used in cosmetics and toilet soaps as an antiseptic and disinfectant、It is highly active against staphylococci and is used as an active agent in deodorants and antiseptic soaps。
三氯生 是一种化工化合物，登记 CAS 号为 3380-34-5，分子式 C12H7Cl3O2（分子量 289.5），归属于消毒剂大类化工原料。
登记 CAS 号：3380-34-5
其分子式 C12H7Cl3O2 由 12 个碳、7 个氢、3 个氯、2 个氧 组成。
别名/同义词：三氯生 · Triclosan
所属分类：消毒剂
三氯生 的 CAS 登记号为 3380-34-5。
分子式 C12H7Cl3O2，分子量 289.5。
别名/同义词：三氯生、Triclosan。
登记用途：Preservative、A halogenated phenol used in cosmetics and toilet soaps as an antiseptic and disinfectant、It is highly active against staphylococci and is used as an active agent in deodorants and antiseptic soaps。
所属分类：消毒剂。
三氯生（CAS 3380-34-5）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 3380-34-5 |
|---|---|
| PubChem CID | 5564 |
| Molecular formula | C12H7Cl3O2 |
| IUPAC name | 5-chloro-2-(2,4-dichlorophenoxy)phenol |
| UNII (FDA) | 4NM5039Y5X |
| Molecular Weight | 289.5 |
|---|---|
| XLogP3 | 5 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 287.951163 |
| Monoisotopic Mass | 287.951163 |
| Topological Polar Surface Area | 29.5 |
| Heavy Atom Count | 17 |
| Boiling Point | 120 |
|---|---|
| Boiling Point | 280 to 290 °C (decomposes) |
| Melting Point | 55-57 °C |
| Melting Point | 54-57.3 °C |
| Solubility | In water, 10 mg/L at 20 °C |
| Vapor Pressure | 0.0000046 [mmHg] |
| LogP | log Kow = 4.76 |
| LogP | 4.53 |
| Dissociation Constants | 7.9 |
| Dissociation Constants | pKa = 7.9 |
triclosan; 3380-34-5; 5-CHLORO-2-(2,4-DICHLOROPHENOXY)PHENOL; Cloxifenolum; 2,4,4'-Trichloro-2'-hydroxydiphenyl ether; Triclosanum; Irgasan DP300; Stri-Dex Cleansing Bar; Stri-Dex Face Wash; CH 3565; Phenol, 5-chloro-2-(2,4-dichlorophenoxy)-; Lexol 300; 5-Chloro-2-(2,4-dichloro-phenoxy)-phenol; CH-3565; DTXSID5032498; Phenyl ether, 2'-hydroxy-2,4,4'-trichloro-
| Regulatory & Food Contact | CIR / INCI: Cosmetic ingredients (Triclosan) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Preservative |
|---|
| Reported hazard statements | H315, H319, H400, H410, H331, H335 |
|---|
H315: Causes skin irritation [Warning Skin corrosion/irritation]
H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Triclosan · CAS 3380-34-5 · C12H7Cl3O2. UNII 4NM5039Y5X. Boiling Point: 120; Boiling Point: 280 to 290 °C (decomposes); Melting Point: 55-57 °C.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Triclosan