
1) Butadiene
Found on
https://www.crosswordclues.com/clue/chloroprene

Chloroprene is the common name for the organic compound 2-chlorobuta-1,3-diene, which has the formula CH2=CCl-CH=CH2. This colorless liquid is the monomer for the production of the polymer polychloroprene, a type of synthetic rubber. Polychloroprene is better known to the public as Neoprene, the trade name given by DuPont. ==Production of chloropr...
Found on
http://en.wikipedia.org/wiki/Chloroprene

(from the article `industrial polymers, chemistry of`) ...(CH2CHCHCH2), isoprene (CH2C[CH3]CHCH2), and chloroprene (CH2C[Cl]CHCH2). When diene monomers such as these undergo polymerization, a number of ...
Found on
http://www.britannica.com/eb/a-z/c/75

CAS Number: 126-99-8. A colorless liquid used especially in making neoprene by polymerization. Chemical formula = C4H5Cl. Molecular weight = 88.54 g/mol. .
Found on
http://www.chemicalglossary.net/definition/473-Chloroprene

<chemical> 2-chloro-1,3-butadiene. Toxic, possibly carcinogenic, monomer of neoprene, a synthetic rubber; causes damage to skin, lungs, CNS, kidneys, liver, blood cells and foetuses. Synonym: 2-chlorobutadiene. ... Chemical name: 1,3-Butadiene, 2-chloro- ... (12 Dec 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

Chloroprene: A possible carcinogen (cancer-causing agent) primarily used in the production of the elastomer polychloroprene (neoprene). The US government in 2000 classified chloroprene as 'reasonably anticipated to be a human carcinogen.' In laboratory animal studies of chloroprene, cancer was observed in multiple organs of multiple species followi...
Found on
http://www.medterms.com/script/main/art.asp?articlekey=13443

[
n] - derivative of butadiene used in making neoprene by polymerization
Found on
http://www.webdictionary.co.uk/definition.php?query=chloroprene
noun derivative of butadiene used in making neoprene by polymerization
Found on
https://www.encyclo.co.uk/local/20974

a colorless, slightly water-soluble liquid, CHCl, usually produced by the reaction of vinylacetylene with hydrochloric acid, that polymerizes to neoprene.
Found on
https://www.infoplease.com/dictionary/chloroprene
No exact match found.