Isoprene

Isoprene
Full structural formula of isoprene	Skeletal formula of isoprene
Ball-and-stick model of isoprene	Space-filling model of isoprene
Hō-miâ
	IUPAC hō-miâ Isoprene
	Iu-sian ê IUPAC hō-miâ 2-Methylbuta-1,3-diene
	Kî-tha hō-miâ 2-Methyl-1,3-butadiene
Sek-pia̍t-hō
CAS Number	78-79-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:35194 ;
ChemSpider	6309 ;
ECHA InfoCard	100.001.040
KEGG	C16521 ;
PubChem CID	6557;
UNII	0A62964IBU ;
	InChI InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 Key: RRHGJUQNOFWUDK-UHFFFAOYSA-N ; InChI=1/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 Key: RRHGJUQNOFWUDK-UHFFFAOYAS;
	SMILES CC(=C)C=C;
Sèng-chit
Hòa-ha̍k-sek	C5H8
Mole chit-liōng	68.12 g/mol
Bi̍t-tō͘	0.681 g/cm3
Iûⁿ-tiám	−143.95 °C (−227.11 °F; 129.20 K)
Hut-tiám	34.067 °C (93.321 °F; 307.217 K)
	Tû-liáu te̍k-pia̍t chí chhut, chu-liāu sī kun-kù bu̍t-chit ê piau-chún chōng-thài (tī 25 °C [77 °F], 100 kPa).
	cha-chèng ( sī siáⁿ ?)
	Infobox chham-chiàu

Isoprene (Óa-im: "i-só͘-phu-liàn"), ia̍h-sī 2-methyl-1,3-butadiene, ī-bō͘-jī-hi (異戊二烯), sī chi̍t chióng diene, hòa-ha̍k-sek sī C₅H₈. I ê chū-ha̍p-bu̍t sī thian-jiân chhiū-leng ê chú-iàu sêng-hūn. Terpene lūi hòa-ha̍p-bu̍t sī isoprene ê ián-seng-bu̍t.

Che sī chi̍t phiⁿ kap hòa-ha̍k siong-koan ê phí-á-kiáⁿ. Chhiáⁿ tàu khok-chhiong.