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Product FOB Price Min.Order Supply Ability Supplier
Isoprene TOP supplier in China
Cas No: 78-79-5
USD $ 23.0-23.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
Isoprene 78-79-5
Cas No: 78-79-5
USD $ 1.0-3.0 / Metric Ton 1 Metric Ton 10 Metric Ton/Day Hebei yanxi chemical co.,LTD. Contact Supplier
Isoprene (stabilized with TBC)
Cas No: 78-79-5
No Data 1 Kilogram 20 Metric Ton/Month Henan Allgreen Chemical Co.,Ltd Contact Supplier
High quality Isoprene supplier in China
Cas No: 78-79-5
No Data No Data No Data Simagchem Corporation Contact Supplier
Cas No: 78-79-5
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
78-79-5 C5H8 Isoprene
Cas No: 78-79-5
No Data 100 Gram 1 Kilogram/Day HENAN SUNLAKE ENTERPRISE CORPORATION Contact Supplier
Isoprene TOP supplier in China CAS No.:78-79-5
Cas No: 78-79-5
USD $ 4.0-100.0 / Gram 10 Gram 1000 Metric Ton/Week HUBEI AOKS BIO-TECH CO.,LTD Contact Supplier
Isoprene TOP supplier in China CAS NO.78-79-5
Cas No: 78-79-5
USD $ 1000.0-1000.0 / Kilogram 1 Kilogram 100 Gram/Day Weifang Tansen Yiang international trading co., LTD Contact Supplier
Isoprene acyclic hydrocarbons
Cas No: 78-79-5
USD $ 3.0-5.0 / Kilogram 1 Kilogram 10000 Metric Ton/Month Baoji Guokang Healthchem co.,ltd Contact Supplier
Isoprene/High quality/Best price/In stock
Cas No: 78-79-5
No Data 1 Milliliter 50 Kilogram/Month Jilin Tely Imp.& Exp.Co., Ltd. Contact Supplier

78-79-5 Usage


  1. https://en.wikipedia.org/wiki/Isoprene
  2. http://www.shell.com
  3. http://www.dgmk.de/petrochemistry/abstracts_content16/Reyer.pdf
  4. https://pubchem.ncbi.nlm.nih.gov 
  5. https://www.lyondellbasell.com

Health Hazard

Vapor produces no effects other than slight irritation of the eyes and upper respiratory tract. Liquid may irritate eyes; like gasoline.

Purification Methods

Reflux it with sodium then distil it from sodium or NaBH4 under nitrogen, and pass it through a column containing KOH, CaSO4 and silica gel. tert-Butylcatechol (0.02% w/w) is added, and the isoprene is stored in this way until redistilled before use. The inhibitor (tert-butylcatechol) in isoprene can be removed by several washings with dilute NaOH and water. The isoprene is then dried over CaH2, distilled under nitrogen at atmospheric pressure, and the fraction distilling at 32o is collected. Store it under nitrogen at -15o. [Beilstein 1 H 252, 1 IV 1001.]


Isoprene occurs in nature and it is produced by many plants. Its polymers are the main component of natural rubber. The most important application of isoprene is to manufacture polymers and copolymers. Polyisoprene, a synthetic rubber made from isoprene, is used in a wide variety of rubber applications including medical equipment, baby bottle teats/nipples, toys, shoe soles, tires, elastic films, threads for golf balls or textiles, adhesives, paints, and coatings. Copolymer butyl rubber, made from isobutene with a small amount of isoprene, has excellent impermeability to gases and is used in inner tubes. Another copolymer styrene-isoprene rubber is used in pressure sensitive adhesives. Isoprene is also used as a chemical intermediate.

Air & Water Reactions

Highly flammable. Insoluble in water.


manufacture of "synthetic" natural rubber, butyl rubber. Copolymer in the production of synthetic elastomers.


Isoprene is used in the synthesis of rubber through a polymer synthetic route.

Reactivity Profile

ISOPRENE may react vigorously with strong oxidizing agents. May react exothemically with reducing agents to release hydrogen gas. May undergo exothermic addition polymerization in the presence of various catalysts (such as acids) or initiators. Undergoes autoxidation upon exposure to the air to form explosive peroxides. Mixing isoprene in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid (70%), oleum, sulfuric acid (90%) [NFPA 1991].

Chemical Properties

colourless liquid with an aromatic odour

General Description

A clear colorless liquid with a petroleum-like odor. Density 5.7 lb / gal. Flash point -65°F. Boiling point 93°F. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a closed container, the container may rupture violently. Less dense than water and insoluble in water. Vapors heavier than air.


ChEBI: A hemiterpene with the formula CH22C(CH3)CH2CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurr ng compounds.

78-79-5 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma-Aldrich (59240)  Isoprene  analytical standard 78-79-5 59240-10ML-F 2,574.00CNY Detail
Sigma-Aldrich (59240)  Isoprene  analytical standard 78-79-5 59240-1ML-F 410.67CNY Detail
Alfa Aesar (L14619)  Isoprene, 99%, stab. with ca 0.02% 4-tert-butylcatechol    78-79-5 500ml 371.0CNY Detail
Alfa Aesar (L14619)  Isoprene, 99%, stab. with ca 0.02% 4-tert-butylcatechol    78-79-5 100ml 219.0CNY Detail
TCI America (I0160)  Isoprene (stabilized with TBC)  >99.0%(GC) 78-79-5 500mL 475.00CNY Detail
TCI America (I0160)  Isoprene (stabilized with TBC)  >99.0%(GC) 78-79-5 25mL 145.00CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name isoprene

1.2 Other means of identification

Product number -
Other names 2-methyl-buta-1,3-diene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Intermediates
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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