1,4-Dichloro-2-butene

Synonyms

1,4-DCB; 1,4-Dichloro-2-butylene; 1,4-Dichlorobutene-2; 2-Butene, 1,4-dichloro-; 2-Butylene dichloride; 1,4-Dichlorobut-2-ene; [ChemIDplus] UN2920

Category

Halogenated Aliphatics, Unsaturated

Description

Colorless liquid with a sweet, pungent odor; [HSDB] Yellowish liquid; [OECD SIDS]

Sources/Uses

Used as an intermediate in chemical manufacturing; [HSDB] Continuously manufactured and processed in closed systems and essentially used 100% as an intermediate; [OECD SIDS]

Comments

Highly toxic; [Quick CPC] When heated, decomposes to toxic gases: phosgene and HCl; High inhalation exposure can cause pulmonary edema; [HSDB] Skin contact with liquid causes severe blistering; [CHRIS] Induces genetic damage in germ cells of humans or animals (3A); [MAK] Reacts with water forming hydrochloric acid; Vapor is irritating to nose and throat; Highly irritating to skin (blistering) and eyes (lachrymation); [CAMEO] Generally available in the US as a mixture of 95-98% trans- (CAS# 110-57-6) and 2-5% cis- (CAS#1476-11-5) isomers; [OECD SIDS] Causes burns and lachrymation; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Highly toxic by inhalation; Toxic by ingestion and skin absorption; [Aldrich MSDS] See "1,4-Dichloro-trans-2-butene."

Biomedical References

Yes

0.005 ppm

3 mm Hg

LC50 (rat) = 86 ppm/4hr

Explanatory Notes

LC50 (rat) = 450 mg/m3/4hr; [OECD SIDS] The Guide in the Emergency Response Guidebook is for "Dichlorobutene." VP from HSDB;

Yes

Yes

Skin burns

Suspected Human

Other Information

No other related information on this agent was found.