| Molecule Form | C4H6Cl2 |
| Molecule Weight | 124.996 |
| CAS NO. | 110-57-6 |
| EINECSNO. | 203-779-7 |
| UN | 3390 6.1/PG 1 |
| HS | 2903299090 |
| Melting Point | 1-3°C |
| Boiling point | 155°C |
| Refractive index | 1.488 |
| Flash Point | 129°C at 760 mmHg |
| Density | 1.183 g/cm³ |
| Steam pressure | 5.85 mmHg at 25°C |
Other name:DICHLORO(TRANS-1, 4-)-2-BUTENE; (E)-1, 4-Dichloro-2-butene; 1, 4-DICHLORO-2-BUTENE CIS AND TRANS; 2-BUTYLENE DICHLORIDE; TRANS-1, 4-DICHLORO-2-BUTYLENE; 1, 4-dichlorobut-2-ene; (2E)-1, 4-dichlorobut-2-ene; (2E)-2, 3-dichlorobut-2-ene; 1, 4-dichlorobut-1-ene
| Assay | ≥99% |
| Appearance | Colorless, transparent liquid with a pungent odor |
| Solubility | Insoluble in water (580 mg/L at 25°C); soluble in organic solvents such as benzene, ether, chloroform, and ethanol |
| Hazard Classification (GHS) | Flammable liquid (Class 3), acute toxicity (oral, inhalation, dermal), skin corrosion (Class 1B) |
| Transport Information | UN 3390, Class 6.1 / PG I |
| Storage | Store in a cool, well-ventilated area, away from open flames and heat sources |
The trans-1,4-dichloro2-butene CAS:110-57-6 is primarily used in the synthesis of pyrrolidone and in the production of key industrial raw materials such as hexamethylenediamine, adiponitrile, and dibutyl ethylene glycol.
1. 4-Dichloro-2-butene is a colorless to pale yellow liquid with a characteristic odor. The cis-isomer exhibits unique properties and is commonly encountered.
The Cheap Trans-1,4-dichloro2-butene CAS:110-57-6 is a colorless liquid with a characteristic odor, an intermediate in the production of hexamethylenediamine and chloroprene.
Reactivity with Air and Water: Insoluble in water.
Trans-1,4-dichloro-2-butene is flammable, but requires a specific reaction to ignite. Combustion produces irritating and toxic fumes. Thermal decomposition releases toxic chlorinated vapors.
This liquid and vapor are highly corrosive and may cause damage to skin, eyes, respiratory system, and internal organs.
Flammable, but ignition may require additional conditions. Combustion releases irritating and harmful gases; thermal decomposition produces toxic chlorinated fumes.
Route of Exposure: 1, 4-Dichloro-2-butene is a byproduct of chloroprene production and is used as a chemical intermediate.
After high-temperature incineration, it is treated with hydrochloric acid. Please consult your local environmental authority for approved disposal methods. Producers that produce ≥100 kg of waste containing this substance must comply with the U.S. Environmental Protection Agency's regulations regarding storage, transportation, treatment, and disposal.
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