Density: 1.16

Boiling point: 125-129 °C

Flash point: 33 °C

Refractive index: 1.469-1.473

Storage conditions: the warehouse is ventilated and dry at low temperature, and stored separately from oxidants and acids

Use

1. For organic synthesis

2. It is used to construct A ring and some other amplification reactions in the total synthesis of estrogens and 19 decarboxylic steroids.

1,3-Dichloro-2-butene (CAS NO.926-57-8) is a clear yellow to brown liquid. There are some informations about it.

First Aid Measures about it:
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Get medical aid. Wash mouth out with water.
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 
Handling and Storage about it:
Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Refrigerator/flammables.